Which of the following objects is in static equilibrium?
A. An apple falling from a tree
B. A car moving at a constant velocity
C. A motorcycle speeding up
D. A bicycle sitting on the ground

Answers

Answer 1
Answer:-

[tex]\longrightarrow \textsf{D. A bicycle sitting on the ground} [/tex]

Solution:-

Let us check all options -

A) An apple falling from a tree is under the influence of gravity. Thus some force is acting on the apple and it can not said to be in state of equilibrium.

B) A car moving at a constant velocity may said to be in state of equilibrium but the since the car is in motion ,equilibrium is dynamic in nature .Thus , it is not in static equilibrium.

C) A motorcycle speeding up has some acceleration due to some forces. Thus it can also not be said in state of static equilibrium.

D) Since the force acting on bicycle sitting down in zero as well as it is in state of rest , thus bicycle sitting on the ground may said to be in static equilibrium.


Related Questions

What are the Fundamental units involved in pressure

Answers

Answer:

density and volume

Explanation:

density and volume

what is the relationship between magnets and emf

Answers

Answer:

Movement of a magnet relative to a coil produces emfs as shown. The same emfs are produced if the coil is moved relative to the magnet. The greater the speed, the greater the magnitude of the emf, and the emf is zero when there is no motion.

Hope this helps!

Poisoner's Handbook Video
Questions

1. What are some symptoms of cyanide poisoning?

2. Describe the state of death investigation in the New York Medical Examiner's office/police department prior to the
hiring of Dr. Norris?

3. What famous hospital became the home of Norris lab?
Bellevue Hospital

4. In what ways did the local government officials (mayor, etc.) try to discourage Norris?

5. Morris believed that Prohibition had become a plague? Why did he refer to Prohibition as a "national experiment in
extermination'?

6. Why was the Standard Oil manufacturing plant referred to as the looney bin?

7. What is illuminating gas? Why was it responsible for more deaths in New York than measles and tuberculosis?

8. Radium was used in painting clock and watch faces because it glowed and make the numbers and hands illuminate
at night. These were worn by servicemen during the war. Women worked in the factories painting these time
pieces during war time. They were known as the radium girls. What effects did these girls experience as a results of
their exposure to radium?

9. What mineral does radium mimic? What effect does this have on the body?

10. Describe New York when the depression hit?

11. What did Prohibition promise that did not happen?

12. Who is Mike the Durable? How did he get this nickname?

Answers

Dizziness, Headache, Nausea, vomiting, rapid breathing, rapid heart rate, Restlessness and Weakness are the symptoms that shows poisoning of cyanide.

What are some symptoms of cyanide poisoning?

Dizziness, Headache, Nausea and vomiting, Rapid breathing, Rapid heart rate, Restlessness and Weakness are the some of the symptoms of cyanide poisoning. Cynaide is a very dangerous and fast acting poison that leads to death if not treated on time.

So we can conclude that all above are the symptoms caused by cyanide poisoning.

Learn more about cyanide here: https://brainly.com/question/25651648


10. A cyclist travels at 15m/s for 4 minutes. How far does she go?

Answers

Answer:

15*4=60

Explanation:

you would multiply

How many energy levels do elements in Period 6 have?

Answers

Answer:

food

Explanation:

A sound wave is produced when a medium begins to.

Answers

Explanation:

Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. As the particles vibrate, they move nearby particles, transmitting the sound further through the medium.

I hope you understand...

can you please mark my answer brainliest ♥️...

Answer:

vibarate

Explanation:

If two objects are the
different sizes and the
same temperature, which
object will have more
thermal energy?

Answers

Answer:

I would say the smaller object.

Explanation:

In any case, thermal energy can be spread throughout the object easier, and quicker, rather than the bigger object.

For example: You are boiling two pots of water, let's suppose Pot A has twice as much as Pot B:

|--------------------- |              |                            |

|                          |              |----------------------- |

|_____________|              |______________|

Pot A                                 Pot B

If you boil them at both the same time, temperature, and continue that for sometime, your results will be that Pot B will have risen in temperature alot faster than Pot A

The comparison:

Pot A and Pot B's Amount of water - Supposed to be the different size of the objects

Stove/Boiling: Would be if thermal heat were to enter the objects at the same temperatures.

Love, which can’t be observed or measured directly, is an example of a psychological construct.


Please select the best answer from the choices provided

T
F

Answers

The answer is true My man

Calculate the momentum on an object that has a mass of 150 kg and a velocity of 24 m/s no decimal in your answer

Answers

Question :-

Calculate the Momentum of an object that has a mass of 150 Kg and a Velocity of 24 m/s .

Answer :-

Momentum is 3600 Kg m/s .

Explanation :-

As per the provided information in the given question, we have been given that the Mass of the object is 150 Kg . Its Velocity is given as 24 m/s . And, we have been asked to calculate the Momentum of object .

For calculating the Momentum , we will use the Formula :-

[tex] \bigstar \: \: \boxed{ \sf{ \: Momentum \: = \: Mass \: \times \: Velocity \: }} [/tex]

Therefore , by Substituting the given values in the above Formula :-

[tex] \dag \: \: \: \sf { Momentum \: = \: Mass \: \times \: Velocity } [/tex]

[tex] \longmapsto \: \: \sf { Momentum \: = \: 150 \: \times \: 24 } [/tex]

[tex] \longmapsto \: \textbf {\textsf { Momentum \: = \: 3600 \: Kg m/s }} [/tex]

Hence :-

The Momentum of the object is 3600 Kg m/s .

[tex] \underline {\rule {180pt} {4pt}} [/tex]

could any of u help me with these question. Its 8th grade science i need help with it
A yacht sailing to the east at a constant velocity took 0.7hours to sail 70kilometers. What was the yacht's velocity?

Answers

Answer:

v = 100 [km/h]

Explanation:

To solve this problem we must identify that the movement is at constant speed, that is, there is no acceleration, therefore we must use the following expression for Speed, which relates is displacement with time.

v = d/t

where:

v = velocity [km/h]

d = displacement = 70 [km]

t  = time = 0.7 [h]

v = 70/0.7 = 100 [km/h]

How can an electrical current produce a magnetic field, and how can a magnetic field produce an electrical current?.

Answers

Answer:

As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of the spin and orbit determine the direction of the magnetic field.

Explanation:

hope this helps

pls mark as brainliest

why does heat flows from hot body to cold body?

Answers

Answer:

The atoms in the hot bodies have higher kinetic energy than those of the cold bodies. Thus to maintain thermal equilibrium, the atoms of higher kinetic energy tries to move and collide with the atoms of low kinetic energy. Thus heat transfers from a hot body to a cold body.

Explanation:

Explanation:The atoms in the hot bodies have higher kinetic energy than those of the cold bodies. Thus to maintain thermaler kinetic energy tries to move and collide with the atoms of low kinetic energy. Thus heat transfers from a hot body to a cold body.

Rows on the periodic table are known as
Columns
O Families
O Rows
O Periods

Answers

Answer:

periods

Explanation:

The answer is periods i googled it

Resistor 1 has twice the resistance of resistor 2. They are connected in parallel to a battery. The ratio of the thermal energy dissipation by 1 to that by 2 is:

Answers

The ratio of the thermal energy dissipation by resistor 1 to that by resistor 2 will be  1 : 2

The Resistance of a Resistor

Resistors can be arranged in series or parallel

The resistors arranged in parallel will have the same potential difference across each every one of them.

Given that Resistor 1 has twice the resistance of resistor 2. They are connected in parallel to a battery. That is

[tex]R_{1}[/tex] = 2[tex]R_{2}[/tex]

Power P = lV

from Ohm's law

V = lR

Make l the subject of formula

l = V/R

Substitute l into power formula

P = [tex]V^{2}[/tex] / R

For the Resistor 1,

P =  [tex]V^{2}[/tex] / 2[tex]R_{2}[/tex]

For the Resistor 2

P =  [tex]V^{2}[/tex] / [tex]R_{2}[/tex]

The ratio of the thermal energy dissipation by 1 to that by 2 will be

[tex]V^{2}[/tex]/2[tex]R_{2}[/tex] x [tex]R_{2}[/tex]/[tex]V^{2}[/tex]

The [tex]V^{2}[/tex] and the [tex]R_{2}[/tex] will cancel out.

Therefore, the ratio of the thermal energy dissipation by 1 to that by 2 will be  1:2

Learn more about Resistance here: https://brainly.com/question/24858512

A 1000 kg mass car moved in a straight, horizontal motion, with a speed of 20m / s, when it was involved in an accident. It was subjected for 0.1s to an intense force, coming to rest after that time interval, any time. is the mean value of the modulus of this resulting force?

Answers

Answer:

average value of the resulting force

Explanation:

The average module value of this resulting force is equivalent to 2.0. 10⁵ N.

The impulse of a force can be calculated by the product of the intensity of the force applied by the time interval in which it is applied -

I = F.Δt

Where,

F = Strength in Newtons

Δt = time interval in seconds

I = Impulse in N.s

The impulse of a force is equivalent to the variation of the amount of movement it causes in the body.

I = ΔQ

The amount of movement is a vector quantity that results from the multiplication of the mass of a body by its speed. Its direction and direction are the same as the velocity vector of the body.  

Q = m-V

As the car goes to rest after the application of force, the amount of final movement of the car is equivalent to zero.

I = 0 - mV

F. Δt = - mV

F. 0,1 = - 1000. 20

F = - 20000/0,1

F = 200,000 N

F = 2,0. 10⁵ N

What is the strength of the electric field 0.020 m from a 12 µc charge? (use k=) 5.4 × 106 n/c 2.7 × 108 n/c 5.4 × 1012 n/c 2.7 × 1014 n/c

Answers

The strength of the electric field will be 2.7 x 108 N/C.

What is the strength of the electric field?

The strength of the electric field is the ratio of electric force per unit charge. Its unit is NC⁻¹.

The given data in the problem is;

E is the strength of the electric field =?

d is the distance = 0.020 m

q is the charge= 12 µc =12 ×10⁻⁶C

The electric field strength is given by;

[tex]E = \frac{Kq}{d^2} \\\\E = \frac{9 \times 10^9\times 12 \times 10^{-6}}{(0.020)^2} \\\\E = 2.7 \times 10^8 N/C[/tex]

Hence the strength of the electric field will be 2.7 x 108 N/C.

To learn more about the strength of electric field refer to;

https://brainly.com/question/4264413

Answer B is right or 2.7 × 108 N/C

Explanation:

Flashcards should focus on a. Key points c. Both of these b. Bits of information d. None of these Please select the best answer from the choices provided A B C D.

Answers

Answer:

c

Explanation:

Define heat capacity of a substance.
Write the S.I unit of heat capacity.​

Answers

Define heat capacity of a substance:

The heat capacity of a substance can be defined as the amount of heat required to change its temperature by one degree.

Write the S.I unit of heat capacity:

Joule per Kelvin

[tex] \: \: \: [/tex]

Joule per Celsius

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

[tex] \: \: \: [/tex]

-,-

A Ford is traveling with a velocity of 15m/s, east, and is 200 m ahead of a Chevy traveling in the same direction at 20 m/s. How far will the Chevy travel before catching up to the Ford? Edit: nvm lol I found it

Answers

Answer:

Distance covered by Chevy before catching up to the Ford = 800 meters

Explanation:

From the graph attached,

A Ford starts with a velocity = 15 meter per second

Therefore, slope of the line representing the relation between the distance and time = [tex]\frac{\triangle s}{\triangle t}[/tex] = Velocity

Let the equation of the blue line,

y = m₁t + b

Where m₁ = slope of the blue line = speed of a Chevy

                                                        = 20 meter per second

b = y-intercept

y = 20t + 0 [Since, Chevy starts from the origin, b = 0]

y = 20t

Let quation of the red line,

y = m₂t + b

Where m₂ = Slope of the red line = 15 meter per sec

b = y-intercept = 200 m [Since Ford is 200 meters ahead of Chevy]

y = 15t + 200

Point where these lines will meet or the point where both the cars meet.

20t = 15t + 200

5t = 200

t = 40 seconds

Distance traveled by Chevy in 40 seconds = Velocity × Time

                                                                         = 20 × 40

                                                                         = 800 meters per seconds

15 PLEASE HELP
Nora rides a bicycle for 5 min on a curvy road
at a constant speed of 10 m/s. Describe Nora's
ride in terms of position, velocity, and
acceleration. Compare the distance she rides
and her displacement.

Answers

Answer:

Ok, her position changed over time since the road is curved.

The velocity changed since the direction is changing

AccelerTion: theres a change in velocity since the direction changes

Direction: changed over time

Displacement : difference between 1st and final position

Explanation:

Displacement : difference between 1st and final position

What is Displacement?

Displacement is defined as the change in position of an object. It is a vector quantity and has a direction and magnitude.

Ok, her position changed over time since the road is curved.

Accelertion: theres a change in velocity since the direction changes

Nora's ride in terms of position is 10*5*60 = 3000 meter is position

Displacement : difference between 1st and final position.

To learn more about displacement refer to the link:

brainly.com/question/11934397

#SPJ5

A toy car of mass 2-kg travels along a horizontal surface with negligible friction at a speed of 1.0 m/s. The car then collides with a vertical wall. The wall applies a force of magnitude 20 N for 0.2 s on the toy car. Which of the following predicts the motion of the toy care immediately after the collision?
A: The speed of the car will increase, and the car will travel in the opposite direction.
B: The speed of the car will decrease, and the car will travel in the opposite direction.
C: The speed of the car will remain the same, and the car will travel in the opposite direction.
D: The car will stop and remain motionless.

Please show your work in finding the direction of motion - ie. please don't use common sense but rather show the applicable physics principles along with formulas to find the direction of motion.

Answers

Answer:

An experiment is conducted in which a cart travels across a horizontal surface and collides with a wall. Data collected from the experiment are used to create the graph of the cart's velocity as a function of time. All frictional forces are considered to be negligible. Which data from the graph should the student use to determine the direction of the net force exerted on the cart and the direction of the change in momentum of the cart from the time intervals of A to B?

Explanation:

Mass=m=2kgVelocity=v=1m/sMomentum=mv=2kgm/s

As we know that

Force=dp/dt(Change in momentum/time)

So

20N=dp/2dp=10N/s

Hence the speed of car will remain the same it won't affect the speedAs momentum from wall is more the ball will travel in opposite direction

Option C is correct

What is the relationship between amplitude and frequency of a wave?.

Answers

Answer:

The relationship between the wave's amplitude and frequency is such that it is inversely proportional to the frequency. The amplitude decreases as the frequency increases. The amplitude increases as the frequency decreases. The higher the energy of a wave, the higher the amplitude. The lower the energy, the lower the amplitude. Energy has no effect on wavelength, speed, or frequency, only the amplitude.

Explanation:

Which of the following surface offers minimum friction ?

Sand
Water
Ice
Grass

Answers

Answer: ice... welcome

Answer:

it is Ice, of course

Explanation:

some text to answer

Name the three types of musical instruments. How is sound produced in each type?

Answers

Answer:

keyboard , guitar and violin

Clarinet, Drums, Trumpet.
A clarinet uses air from your body, the drums make sound because of the waves bouncing of the drum stick as you hit the drum, and the trumpet uses air from your body as you blow into it.

What happens within the motor when an electric current flows through the loop of a wire

Answers

Answer: I think its B: The loop becomes electromagnetic, which causes the loop to flip and produce mechanical energy.

Explanation:

What is the relationship of gas pressure to it temperature?

Answers

Explanation:

By Gay-Lussac's law

Pressure is directly proportional to its temperature at given volume.

When the temperature of a system goes up, the pressure also goes up, and vice versa.

Answer:

So, as pressure increases, temperature will increase as well or vice-  versa

Explanation:

The Ideal Gas Equation is PV = nRT, where :-

P = Pressure

V = Volume

n = number of moles

R = Molar Gas Constant

T = Temperature

In this, P ∝ T

=> So, as pressure increases, temperature will increase as well or vice-  versa

What is the gravitational potential energy of the tennis ball at position A?

Will give brainliest!

Answers

kinetic energy = gravitational potential energy

In other words:

KE = Ug
(1/2)mv^2 = mgh

The “m” variable cancels out on either side:

(1/2)v^2 = gh

(1/2)(5)^2 = (9.8)h

h = 1.28 m

Therefore, since Ug = mgh:

(0.058)(9.8)(1.28) = 0.72 J

challenge
3. A car accelerates at a constant rate from 15 m's to 25 m/s while it
travels a distance of 125 m. How long does it take to achieve the final speed?

Answers

Answer:

6.25 second

Explanation:

we know that

s= (u+v)/2*T

125=20t

t=6.25 second

plz mark as brainalist

An object of mass 4.0kg is situated at a point where there is gravitational field strength of 9.0N/kg. What is the weight of the object

Answers

Answer:

Explanation:  mASS = 4 KG

                        G.F = 9 N/KG  

                      SO

                               W = 9 X 4

                                W =  36 N

What body systems work together whenever you get a cut on your finger?
A. Reproductive and skeletal system
B. Circulatory system and immune system
C. Circulatory system and digestive system
D. Digestive system and nervous system

Answers

B because the chicken look at a crocodile and thought it was a cat and it killed it
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