if you reverse the poles of battery what will happen to the direction Of the lines?

Answers

Answer 1

Answer: The battery casing will explode

Explanation: Hydrogen gas will be released because of the heat which may cause an explosion.


Related Questions

When a satellite is a distance d from the center of Earth, the magnitude of the gravitational force that the satellite exerts on Earth is F. What is the magnitude of the gravitational force that the satellite exerts on Earth when the satellite's distance from the center of Earth is 3d?
plsss help

Answers

According to Newton's law of gravitation, the new gravitational force will be F/9

Newton's Law of Gravitation

It states that, the force of attraction between two masses is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

When a satellite is a distance d from the center of Earth, the magnitude of the gravitational force that the satellite exerts on Earth is F. That is,

F = GMm/d²

Where

M = mass of the earthm = mass of the satelliteG = universal gravitational constant

The magnitude of the gravitational force that the satellite exerts on Earth when the satellite's distance from the center of Earth is 3d can be expresses as follow

f = GMm/(3d)²

f = GMm/9d²

f = GMm/d² × 1/9

Since GMm/d² = F

f = F × 1/9

f = F/9

Therefore, the magnitude of the gravitational force that the satellite exerts on Earth when the satellite's distance from the center of Earth is 3d is F/9 Newton

Learn more about Gravitational Force here: https://brainly.com/question/19050897

#SPJ1

1) Renatta Gass is out with her friends misfortune occurs and renatta and her Friends find themselves getting a workout. They apply a cumulative force Of 1580N to push the car 288m to the nearest fuel station. Determine the work done on the car.

Answers

Work is characterized as a force that causes an object to move or be displaced.  The work done would be 455040.

What is Work?

Work is the scalar product of the force acting on an object and the displacement that force causes when the force is constant.

Despite the fact that work lacks a direction due to the scalar product (or dot product) aspect of vector mathematics, force and displacement are both vector quantities.

"W" stands for work, "F" is the force, and "d" represents displacement (or the distance the object travels).

Therefore, Work is characterized as a force that causes an object to move or be displaced.  The work done would be 455040.

To learn more about work, refer to the link:

https://brainly.com/question/18094932

#SPJ1

How can you tell which elements will form ions?

Answers

Answer: The position of an element on the periodic table, see resources, tells you the type of ions it will form, with the elements on the right forming anions (negative charge) and those further to the left forming cations (positive charge).

Hope this helps any

A student is connecting three resistors of various resistances together in a circuit. In one configuration, the resistors are connected in a series. In another configuration, the resistors are connected in parallel. Explain which configuration results in a higher total resistance.

Answers

Most circuits contain more than one resistor, which restricts the passage of charge inside the circuit. Resistance is a unit of measurement for this charge flow restriction.

What is Resistance?

When a current, or flow of charge, must pass through a sequence of devices, resistors are used. For instance, if a person holding a screwdriver allows current to flow through them and into the Earth, then

Resistors are connected in series to a voltage source. Given that the current must flow sequentially through each resistor, it makes sense that the total resistance is equal to the sum of the individual resistances.

This fact would be helpful to someone trying to prevent an electrical shock since they could wear high-resistance rubber-soled shoes to lower the current.

Therefore, Most circuits contain more than one resistor, which restricts the passage of charge inside the circuit. Resistance is a unit of measurement for this charge flow restriction.

To learn more resistance, refer to the link:

https://brainly.com/question/29427458

#SPJ1

4. A 55.0 g object connected to a spring with a force constant of 35.0 N/m oscillates on a horizontal, frictionless surface with an amplitude of 8.00 cm. a) Find the total energy of the system. 112 mJ b) Find the speed of the object when the position is 1.20 cm.

Answers

According to the given data the total energy (E) of the system is 11.2 m J.

What is an illustration of oscillation?

A periodic movement between two sites is what is referred to as oscillation in this type of behavior. Examples of oscillating motion include plucking a guitar string, pendulum swinging, and pogo stick bouncing. The major distinction between oscillation, vibration, and simple harmonic motion is that oscillation is a general term for any repeating fluctuation about a central value, whereas vibration is a term used especially to describe mechanical oscillations.

Energy is given by-

E= 1/2KA²

E = 1/2 ×N/m× (8×10∧-2 m)²

​E = 11.2 m J

Speed of the object-

v = ω[tex]\sqrt{A2-x2}[/tex]

v = [tex]\sqrt{K/m}[/tex]    [tex]\sqrt{A2 - x2}[/tex]

v = [tex]\sqrt{35/55*10-3}[/tex] ×( (8×10-2)∧-2 - (1.20 × 10-2)∧2 )[tex]^{-1/2}[/tex]

v = 25.22 × 0.079

v = 2 m/s.

To know more about oscillations visit :-

brainly.com/question/15780863

#SPJ4

the first artificial satellite to orbit the earth was sputnik 1, launched october 4, 1957. the mass of sputnik 1 was 83.5 kg, and its distances from the center of the earth at apogee and perigee were 7300 km and 6610 km, respectively. find the difference in gravitational potential energy for sputnik 1 as it moved from apogee to perigee

Answers

The difference in gravitational potential energy for sputnik 1 as it moved from apogee to perigee is 193 kJ.

The gravitational potential energy of an object in orbit around the Earth can be calculated using the equation:

U = -GMm/r

where U is the gravitational potential energy, G is the gravitational constant, M is the mass of the Earth, m is the mass of the object.

The difference in gravitational potential energy as the satellite moves from apogee to perigee can be found by calculating the potential energy at each point and subtracting the two values:

U(apogee) = -(6.67 x 10^-11 N*(m^2)/(kg^2)) * (5.972 x 10^24 kg) * (83.5 kg) / (7300 x 10^3 m)

U(perigee) = -(6.67 x 10^-11 N*(m^2)/(kg^2)) * (5.972 x 10^24 kg) * (83.5 kg) / (6610 x 10^3 m)

U(apogee) = -1.865 x 10^5 J

U(perigee) = -2.058 x 10^5 J

The difference in gravitational potential energy is:

= U(perigee) - U(apogee)

= -2.058 x 10^5 J - (-1.865 x 10^5 J)

= 193 x 10^3 J

So, the difference in gravitational potential energy for Sputnik 1 as it moved from apogee to perigee is 193 kJ.

To know more about potential energy please refer: https://brainly.com/question/24284560

#SPJ4

The number of pices of sausage needed by a pizza restaurant is given by the equation S= 21 n. In this equation, n is the number of pizzas the resturant will make. How many pieces of sausage are needed to make 55 pizzas? A. 34 B. 1155 C. 76 D. 855

Answers

The piece of sausage need to make 55 pizza is 21 × 55 = 1155.

How long does it take to make a pizza on average?

The typical baking time for a pizza is 8 to 15 minutes, and larger, thicker pizzas bake more slowly than thin-crust, petite pizzas with few toppings. Just a friendly reminder: never lose sight of the pizza.

The two pizza rule is what?

The "2 pizza rule" is a formula for determining how many people to invite to a gathering. Every meeting had to be small enough for two large pizzas to feed everyone, according to the rule.

To know more about pizzas visit :-

brainly.com/question/6530800

#SPJ4

The Earth has a mass of 6 x 10^24 kg and orbits the Sun in 3.15 x 10^7 seconds at a constant radius of 1.5 x 10^11m. Find the following.
(a) What is the Earth's centripetal acceleration around the Sun?
(b) What is the gravitational force acting between the Sun and Earth?
(c) What is the mass of the Sun?

Answers

The Sun's mass is 1.778 x 10 m/s2. v=2rT, where T is the amount of time it takes for the Earth to turn around the Sun.

What is our sun's mass?

Mass and volume: 1.989 x 1030 kilograms The sun has a mass of 1.989 x 1030 kilograms, which is about 333,000 times the mass of the Earth. Leading astronomers Jack J. and Imke de Pater found that the sun contains 99.8 percent of the mass of the entire solar system.

Earth's mass, Me, is 6 x 10 kg.

Earth's R Radius and Time of Rotation are 1.5x10m. 3.15 x 107 Sec.

Ac = earth's centripetal acceleration We know that W =  345X107 1.99 X 10 Rad/s Gravitational Force F 6x1024 x 1.99x107x mass of the Sun Me 2

F equals 35 + 82 x 10° N Ani.

F = 6 R2 28 2522 x 10" 6.67 x 10" x 6 x 1024 x Ms  (1.5 X 10") 2 Ms 35.82 x 1028 x 1.5X1-5 x 1822 6.67 X 10" x 6 x 10' 24 Ms 50 80.59 x 10° 40.02 X 10/3 37 Ms = 2.01 x 10 kg is known to exist.

The fact that centripetal acceleration F-ma f 22 equates both equations is known by mass of now. ma Scanner a equals 52.

ат 24 6.67 x 10" x 6X 10° 1-5 x 10" 17:78 x 16-9 = 1.778 x 10 m/s2 Ans

To learn more about Sun's mass here:

https://brainly.com/question/1626565

#SPJ1

Ammeters that respond to the average value convert the alternating current into direct current. This value must be increased by a factor of _____ to change the average reading into the rms value for a sine wave current.

Answers

The average reading must be multiplied by a multiplier of 1.111 to become the rms value for just a sine wave flow.

Describe the wave current?

Wave-current interaction in fluid dynamics is the interaction of a mean flow with surface gravity waves.After the interaction begins, both the waves as well as the average flow are impacted since the contact implies an energy exchange.

What are the tide and the wave?

While the tide is a type of vertical motion of the ocean's water, waves and ocean circulation represent horizontal movements of the water.

To know more about wave current visit:

https://brainly.com/question/2047457

#SPJ4

two objects gravitationally attract with a force of 36 N if the distance between the two objects centers is decreased by a factor of threee then the new force of attraction is

Answers

The new force of attraction is 324N if the distance between the centres of the two objects is reduced by a factor of 3e.

The equation for the force of gravitational attraction between two objects is: F = G*(m1*m2)/r^2 Where F is the force of attraction, G is the gravitational constant (6.67 x 10^-11 Nm^2/kg^2), m1 and m2 are the masses of the two objects, and r is the distance between their centers. If the distance between the two objects' centers is decreased by a factor of three, the new force of attraction will be: F' = G*(m1*m2)/(r/3)^2The ratio of the new force of attraction to the original force of attraction is:

F'/F = (r/3)^2 If we substitute in the original force of attraction, we have:

F'/36 = (r/3)^2 = F' = 36 * (r/3)^2

As we decrease the distance by a factor of 3, the new force of attraction will increase by a factor of 9.

F' = 36*9 = 324 N

Therefore, the new force of attraction is 324 N.

Learn more about gravitational attraction here:

https://brainly.com/question/19822389

#SPJ4

At an outdoor physies demonstration, a delay of 0.50 second was observed between the time sound waves left a loudspeaker and the time these sound waves reached a student through the air. If the air is at STP, how far was the student from the speaker? (1) 1.5 × 10-m (91.7 × 102 m (3) 6.6 × 10? m (4) 1.5 × 108 m

Answers

The distance that is covered by the sound is  1.66 * 10^2 m.

What is the distance?

We know that sound is a mechanical wave. The implication of this is that sound woulod need to have a medium through which the sound can be able to travel. The speed of sound in the various media through which the sound travels is not the same.

We know that the speed of sound in air is 331 m/s and we have to use this in our calculations.

Distance = speed * time

Distance =  331 m/s * 0.5 s

= 1.66 * 10^2 m

Learn more about speed of sound:https://brainly.com/question/15381147


#SPJ1

3. A student tosses a 0. 500 kilogram rock into

a pond at a rate of 1. 00 meter per second. If

the student's mass is 45. 0 kilograms, what

is the momentum of the rock by the

student?

Answers

The momentum of the rock by the student is 0.500kgm/s.

Momentum -

momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum. Check out Newton's laws of motion.

Momentum can be viewed as a body's "power" while it is moving, or the amount of force it can exert on another body. For instance, a baseball (small mass) thrown quickly can have the same momentum as a bowling ball (big mass) going extremely slowly (low velocity) (high velocity).

Momentum = Mass × Velocity

Momentum of rock = 0.500 × 1

= 0.500kgm/s

Momentum of Boy = 45 × 0 [As boy is at rest so, he has 0 momentum]

Momentum of boy = 0

Total Momentum = Momentum of rock + Momentum of boy

= 0.500 + 0

= 0.500 kgm/s

To learn more about Momentum from given link

https://brainly.com/question/25121535

#SPJ4

can u pls solve this question thank u!! i having my physics paper tomorrow!!

Answers

Answer:

13.875Ω & 5Ω

Explanation:

in the first diagram:-

R = Rs + Rp + Rs'

Rp => [tex]\frac{1}{7} + \frac{1}{1} = \frac{1+7}{7} = \frac{8}{7} \\[/tex]

Rp = [tex]\frac{7}{8}[/tex] = 0.875

4 + 0.875 + 9 = 13.875Ω

in the second diagram:-

R= Rp + Rs + Rp'

Rp => 1/6 + 1/3 = 1+2/6 = 3/6 => 2

Rp' => 1/3+1/3+1/3 = 3/3 => 1

R = 2 + 2 + 1 = 5 Ω

2 points

A car traveling at 25 m/s forward completes a sharp turn to the left. Fully

explain what an unbuckled passenger in the car experiences as the car

moves through the turn, assuming the passenger completes the turn in

the car. You must also properly explain inertia's role in this scenario *

Answers

An unbuckled passenger in the car experiences movement towards right side due to inertia as the car moves towards left.

According to Newton's first law of motion, every body continues to be in a state of rest or of uniform motion unless an external force acts upon it. This is called inertia. It is the tendency of an object to resist change.

As a result, when the car makes a sudden left turn, the passengers appear to move to the right side of the vehicle because they are still travelling in the same straight line that the car was travelling in before the turn.

To know more about inertia:

https://brainly.com/question/2289967

#SPJ4

A 600 g steel block rotates on a steel table (μk = 0.6) while attached to a 1.0 m long hollow tube. Compressed air fed through the tube and ejected from a nozzle on the back of the block exerts a thrust force of 4.2 N perpendicular to the tube. The maximum tension the tube can withstand without breaking is 50 N. If the block starts from rest, how many revolutions does it make before the tube breaks?

Answers

If the block starts from rest, then revolutions that it make before the tube breaks is 0.947 rotations.

What is meant by revolution?

When object turns around an internal axis, it is called a rotation. When object circles an external axis, it is called revolution.

Given mass of block = 600 g = 0.6 kg ; Radius of rotation = 1.0 m-long

Given thrust force of 4.2 N

The maximum tension is 50 N.

As thrust is perpendicular to the tube. So, tangential component of the thrust force is Ft=4.2 N and radial component Fr=0

As we know, α = F/m r

= 4.2/0.6 * 1

α = 7 rad/s²

As, m r ω²= 50 N

ω² = 50/ 0.6 * 1.0

ω = 9.128 rad/s

Ф = ω² - ω0²/2α

= (9.128² - 0)/2 * 7

Ф = 5.951 rad

As 1 Radians = 0.1592 Rotations,

5.951 rad = 0.947 rotations.

To know more about revolution in physics, refer

https://brainly.com/question/10380074

#SPJ1

Please help
How does sound move from the source to the receiver? (a slinky moving back and forth)

Answers

Answer:

through a chain reaction of particle collisions in a medium.

Explanation:

Stephen has to drive 8 miles south and 3 miles east to get to work.What is his distance and displacement?

Answers

Since the displacement is a vector quantity, the distance is 11 miles while displacement is 8.5 miles

What is Displacement ?

Displacement is a distance travelled in a specific direction. Distance is a scalar quantity while displacement is a vector quantity.

Given that Stephen has to drive 8 miles south and 3 miles east to get to work.

His distance will be 8 miles + 3 miles = 11 miles

While his displacement can be calculated by using Pythagoras theorem. That is,

Displacement D = √(8² + 3²)

D = √(64 + 9)

D = √73

D = 8.5 miles

Therefore, his distance is 11 miles and his displacement is 8.5 miles.

Learn more about Displacement here: https://brainly.com/question/2109763

#SPJ1

What is the velocity of the particle at time t 0?

Answers

The velocity of the particle at t=0 is zero because the particle is in rest position and did not moving at any of the instance or travelling at an uniform speed through out the whole journey or yet did not start from the source point.

Velocity is the rate of change of velocity. At any point on a trajectory, the magnitude of the velocity is given by the rate of change of velocity in both magnitude and direction. Velocity of the body that we can consider is the increasing value of the velocity of any object at a constant rate and that of we can calculate. Hence by the primary information that we have we can formerly consider that the velocity which is acting on the particle at t=0 is zero because the particle is in rest position and did not moving at any of the instance or travelling at an uniform speed through out the whole journey or yet did not start from the source point.

Learn more about Velocity:

brainly.com/question/18084516

#SPJ4

The centripetal force on object M as it passes

through the rest position is approximately

Answers

Since the particle always moves in a circular motion in a direction perpendicular to the radial direction.

The work done by the centripetal force in a circular motion is therefore always zero since the dot product is always zero. A force known as the centripetal force acts on a particle when it is revolving around a specific axis or point. The circular path's center is where this force is directed. The ideal decision is (d) Therefore, the body's weight will be equal to the centripetal force when the angular acceleration reaches the same level as the acceleration caused by gravity. It should be noted that for the centripetal force to equal the weight, there must be a uniform circular motion.

Learn more about acceleration here-

https://brainly.com/question/12550364

#SPJ4

Why is countercurrent flow more efficient?

Answers

The counter-current method is the most efficient because it maintains the same concentration gradient over the whole length of the circuit.

The heat transfer performance of counter flow, on the other hand, may be up to 15% more effective, depending on the flow rate and temperature, allowing for the use of a smaller heat exchanger and saving both money and space.

One of the key advantages of counter-current flow is its capacity to extract more heat from the heating fluid. It is crucial to note that the LMTD value for counter-current flow is much larger than for concurrent flow at the same terminal temperature.

A phenomenon known as countercurrent exchange, which occurs in nature and is imitated in industry and engineering, involves the crossover of a certain attribute, typically heat or a chemical, between two flowing bodies moving in opposite directions.

To know more about counter-current

https://brainly.com/question/30133212

#SPJ4

Assume air resistance is negligible unless otherwise stated. Calculate the displacement in m and velocity in m/s at the following times for a rock thrown straight down with an initial velocity of 14.4 m/s from the Verrazano Narrows bridge in New York City. The roadway of this bridge is 70.0 m above the water. (Enter the magnitudes.) (a) 0.500 s displacement m velocity m/s (b) 1.00 s displacement m velocity m/s (c) 1.50 s displacement m velocity m/s (d) 2.00 s displacement m velocity m/s (e) 2.50 s displacement m velocity m/s

Answers

Answer:

(a) 0.500 s displacement 70.0 m - 7.2 m velocity 7.2 m/s

(b) 1.00 s displacement 70.0 m - 28.8 m velocity -13.6 m/s

(c) 1.50 s displacement 70.0 m - 57.6 m velocity -20.4 m/s

(d) 2.00 s displacement 70.0 m - 92.8 m velocity -24.0 m/s

(e) 2.50 s displacement 70.0 m -134.4 m velocity -25.2 m/s

The human ear canal is about 2. 8 cm long and can be regarded as a tube open at one end and closed at the eardrum. What is the frequency around which we would expect hearing to be best when the speed of sound in air is 344. 5 m/s? (hint: find the fundamental frequency for the ear canal. )

Answers

The human ear canal is closed at one end. Thus, the fundamental frequency of the given ear canal is 3044.64Hz 3044.64 Hz .

Calculation and Explanation:

Under air conduction (AC) excitation, the mean resonance frequency of the human middle ear is estimated to be between 0.8 and 1.2 kHz. The typical resonance frequency under bone conduction (BC) excitation, according to research, is higher, at 1.5–2 kHz.

It is a tube with an open end (the concha section) and a closed end (the tympanic membrane), which responds to a quarter-wave by behaving as a resonator. The resonance frequency is described by the equation F=v/4L, where "v" stands for the speed of sound and "L" for the length of the EAC.

The EAR formula should be used: EAR = (1+ i/n)n - 1. I = Stated interest rate, etc.

To learn more about fundamental frequency visit:

brainly.com/question/9424813

#SPJ4

A wheel rotates at 2 rad/s. What is its period and frequency?

Answers

(1) The frequency of the oscillation is 0.32 Hz.

(2) The period of the oscillation is 3.13 seconds.

What is the period of the wheel's oscillation?

The period of the wheel's oscillation is the time taken for the wheel to make one complete oscillation.

The period of an oscillatory motion is the reciprocal of the frequency of the oscillation.

The frequency of the oscillation is the number of cycles completed by the oscillatory object in a given second.

The frequency of the wheel undergoing oscillatory motion is calculated by using the following formula.

f = ω / 2π

where;

ω is the angular speed of the wheelf is the frequency

f = ( 2 rad/s ) / 2π

f = 0.32 Hz

The period of the oscillation is calculated as follows;

T = 1 / f

T = 1 / 0.32 s

T = 3.13 seconds

Thus, the period of oscillation and frequency of the oscillation are inversely proportional.

Learn more about period of oscillation here: https://brainly.com/question/20070798

#SPJ1

8) An object is attached to a hanging unstretched ideal and massless spring and slowly lowered to its equilibrium position, a distance of 6.4 cm below the starting point. The mass is then pulled so the spring is stretched to a length of 9.6 cm. How fast will the mass be moving when it reaches the equilibrium position?

Answers

Work is accomplished by stretching or compressing a spring. Elastic potential energy is stored in the spring. It is recommended to expand the spring up to 12.8 cm.

What happens to the elastic potential energy that is stored in a spring when work is done to extend it?

Elastic potential energy is stored in the spring as a result of the work required to stretch or compress it. A spring's elastic potential energy is equal to one-half the sum of its spring constant times its deformation squared.

When a spring is stretched or compressed from its initial resting position, where is the elastic potential energy stored?

We'll talk about elastic potential energy as the second type of potential energy. The energy that is trapped in elastic materials as a result of their stretching or compression is known as elastic potential energy.

To know more about spring stretched here:

brainly.com/question/14203117

#SPJ1

Two objects with negative charges of 6.2 nC each are separated by 0.3 m. What is the size and direction of the force between the two charges?

Answers

The force between the charges are [tex]3844*10^{3} N[/tex]

Before we try to calculate Coulomb's law for forces between multiple charges, we need to understand Coulomb's force between two charged particles. Coulomb’s law or Coulomb’s inverse square law was discovered in 1785 by French physicist Charles-Augustin de Coulomb. The experimentally proven law quantifies the force exerted by a static charged particle on another static charged particle.Assume two static charged particles with a charge of ‘q1’ and ‘q2’ respectively. The force exerted by one particle on the other, if they are separated by a distance of ‘r’ between their centers is given by:

                                              [tex]F = kQq/r^{2}[/tex]

Given, Q = q = 6.2 mC = [tex]6.2 * 10^{-3}[/tex]

           r = distance = 0.3m

           k = constant = [tex]9*10^{9}[/tex]

Putting these values in above equation we get F = [tex]3844*10^{3} N[/tex]

To know more about charges visit:

https://brainly.com/question/28984168

#SPJ1

A 50 kg person and a 70 kg person are sitting on a bench close to each other about .5 m apart.
Estimate the magnitude of the gravitational force each exerts on the other.

Answers

Answer:

1.0 x 10-6 N.

Explanation:

The gravitational force

Fg = G m1 m2 / r2 = (6.673 x 10-11) (50 kg) (75 kg) / (0.50 m)2 = 1.0 x 10-6 N.

A point particle of charge -5.40 nC is located at the origin of a Cartesian coordinate system. Determine the magnitude of the electric field due to this charge at a distance of 23.0 cm from the charge.

Answers

The magnitude of the electric field due to this charge at a distance of 23.0 cm from the charge is 918.7 N/C.

Given that,

Charge on point particle Q = -5.4 nC = -5.4 × 10⁻⁹ C

Distance from the charge r = 23 cm = 23 × 10⁻² m

The relation between distance charge and electric field is known to be,

E = 1/4πε₀ × Q/r² = 9 × 10⁹ × (-5.4 × 10⁻⁹)/(23 × 10⁻²)² = (9 × 5.4)× 10⁴/(23)² = 918.7 N/C

Thus, the magnitude of the electric field due to this charge at a distance of 23.0 cm from the charge is calculated to be 918.7 N/C.

To know more about electric field:

https://brainly.com/question/14595416

#SPJ4

In a football game, a 140 kg linebacker runs at a speed of 4 m/s while a 70kg safety runs at 8m/s. It is correct to say

Answers

Yes, the given statement is correct in a football game, a 140 kg linebacker runs at a speed of 4 m/s while a 70kg safety runs at 8m/s.

What connection exists between mass and velocity?

Momentum is directly proportional to mass and velocity. The momentum of the object increases proportionally as either mass or velocity are increased. The momentum is doubled for every unit increase in mass or speed.

In first case

Momentum = mass × velocity

Momentum = 140 × 4

Momentum = 560 kg.ms⁻¹

In second case

Momentum = mass × velocity

Momentum = 70 × 8

Momentum = 560 kg.ms⁻¹

In both cases momentum is same so the given statement is correct.

To know more about momentum visit:

https://brainly.com/question/24030570

#SPJ1

Patrick and Emily are walking to the grocery store to buy some treats. They walk 3.0
km in 900.0 s. What was their average speed in m/s?

Answers

Answer:

3.33 m/s

Explanation:

(3.0 km)(1000 m/km) = 3000 m

Avg. Speed = distance/time = 3000 m/900 s = 3.33 m/s

If an airplane were traveling westward with a thrust force of 450 N and there was a headwind (drag) of 200 N, what would the resulting net force be on the airplane

Answers

The net resultant force on the airplane, based on the data provided in the question, is 250 N.

How can the net force that results be calculated?

Calculate the resultant force by deducting the larger force's size from of the smaller force's magnitude. The direction of the smaller force and the resulting force are identical. The resulting force is useful because it allows us to think about the several forces as as if they were one. To measure the effects of different forces on a thing, in other words.

Given data -

Thrust force = 450 N

headwind (drag) = 200 N

Net force = 450 - 200

Net force = 250 N.

To know more about net force visit :-

brainly.com/question/2136792

#SPJ4

Other Questions
Determine the slope, x-intercept and y-intercept of the line given by the equation 2x+3y=6 Mary has a sense of meaning and direction in her life and a relationship to a higher being. She has a high level of _____________ wellness. I go further, and affirm that bills of rights, in the sense and to the extent in which they are contended for, are not only unnecessary in the proposed Constitution, but would even be dangerous. They would contain various exceptions to powers not granted; and, on this very account, would afford a colorable pretext to claim more than were granted. For why declare that things shall not be done which there is no power to do When using a 20 ft ladder how far from a building should the base of the ladder be? This is the name given a warlike, belligerent stance that urges the "bullying" of other countries in order to benefit the person's own country. It is associated with the Age of Imperialism, particularly the Spanish-American War. This is the name given a warlike, belligerent stance that urges the "bullying" of other countries in order to benefit the person's own country. It is associated with the Age of Imperialism, particularly the Spanish-American War Every agreement and promise enforceable at law are a contract There are different types of Contracts based on enforceability, formation, and performance. Explain all the types with examples. To what extent did George W. Bush fulfill his domestic policy goals? What are the products of the following reaction?OCH2CH2OH excess HBr--> heatO Br - OCH2CH2BrO Br + BrCH2CH2OHO OH + BrCH2CH2BrO Br + BrCH2CH2Br How did the Rosenberg Case impact American citizens that expanded the Second Red Scare?a. It made them wonder if communism was the way to go.b. It made them wonder if ordinary U.S. citizens were posing as communist spies.c. It made them wonder if the U.S. government was doing enough to stop the communist threat.d. It made them wonder if they could trust their own government to not accuse them of being communist spies. Why do you think trials such as Irmgard Furchner's are important to survivors of the Holocuast? A typical example of a passive activity is an interest in a: Limited partnership in which the partner does NOT materially participate in the business activities. Limited partnership in which the partner materially participates in the business activities. Limited partnership in which the general partner participates in the business activities over 500 hours. Limited partnership which has no general partner. What is the degree of the polynomial 2x 5x 7 *? Help me .::::..::::&:88338 What are the composite units of each type of solid? What types of forces hold each type of solid together? Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help nonbonding Molecular solids are those solids whose composite units are together by the following kinds of intermolecular forces: Molecular solids are held bonding coulombic forces and hydrogen lonic solids are those solids whose composite units are Ionic solids are held together Individual atoms by dispersion forces network covalent dispersion forces, dipole- dipole forces Atomic solids are those solids whose composite units are Atomic solids can themselves bo divided into three following categories, where each is held together by a different kind of force. The first category, which includes only the noble gases in their solid form and is held together by relatively weak atomic solids. The second category, which is held together by bonds and includes such examples as copper or silver, is atomic solids. The last category, which is hold together by and includes such examples as diamond, graphito, and silicon dioxide, is atomic solids ions metallic molecules covalent bonds lon-dipole forces How did Adam Smith economic ideas help the United States establish a free enterprise system? WILL GIVE BRAINLIST Instructions: As you complete each slide of the Natural Selection Virtual Lab Activity, please fill in this lab report with the appropriate information and data.Title:Include your name, instructors name, and the name of the labObjective(s):What is the purpose of the labHypotheses:Include the if/then statement you developed during the virtual lab.Variables:Materials:The Natural Selection Virtual Lab ActivityNatural Selection Virtual Lab ReportProcedures:The procedures are listed in Natural Selection Virtual Lab Activity. You do not need to include them here.Data and Observations:Table 1: Rabbits in the light-colored environmentGenerationRate of Survival for White RabbitsRate of Survival for Brown Rabbits12345Table 2: Rabbits in the dark-colored environmentGenerationRate of Survival for White RabbitsRate of Survival for Brown Rabbits12345Data Analysis:Part 1: In your data tables, you recorded the percentage of the rate of survival for both the white and brown rabbit in both the light-colored and the dark-colored environments.Part 2: Using your percentages in part 1, create a graph that represents the rate of survival for the white and brown rabbits in each type of environment.Insert chart [Hint: dont forget to consider the relationship between your data and the type of graph to best represent your data. A bar graph would be the best option to analyze this data.]Conclusion:Include the following as a summary paragraph in the conclusion of your lab report:Analysis of the results of the experimentUsing Table 1, which color rabbit had the higher rate of survival in the light-colored (white) environment? Explain why this occurred.Using Table 2, which color rabbit had the higher rate of survival in the dark-colored (brown) environment? Explain why this occurred.What color rabbit seemed to camouflage the best in this snow habitat, and why?Rationale for the support or rejection of the hypothesisQuestions:Using what you have learned from the lesson and the virtual lab activity, answer the following questions in complete sentences.How did the colors of each type of prey affect its population size over time?How do you predict the data would change if you continued? Explain your answer.What traits could help a predator be more "fit" to survive in each environment? Be specific.Describe other adaptations besides color that could affect an individual's survival.Explain what will happen if there are not enough resources to support the individuals in a species.This experiment tested natural selection. What could be another possible mechanism of evolution for the rabbits to evolve? Be specific. A pharmaceutical sales representative makes a base salary of $68.400 per year. In addition, she can earn an annual bonus of up to $20,800 if she meets her prescription targets for the two medications she sells. She receives 60% of the bonus if she meets her target for Medication A, and she receives 40% of the bonus if she meets her target for Medication B. If she only meets her target for Medication A, what would her total compensation (salary plus bonus) be for the year? ) Find the surface area and volume for this following pyramid The patient has an order for diphenhydramine HCl (Benadryl) 37.5 mg orally. The medication available is diphenhydramine HCl 6.25 mg/10 mL. How many mL will the nurse administer An astronaut was exploring the moon of a distant planet, and found some glowing goo at the bottom of a very deep crater. She brought a 10-gram sample of the goo to her laboratory. She found that when the goo was exposed to light, the total amount of goo increased by 100% every hour. How much goo will she have after 1 hour? After 2 hours? After 3 hours? After n hours? When she put the goo in the dark, it shrank by 75% every hour. How many hours will it take for the goo that was exposed to light for n hours to return to the original size?