which line represnts object moving fastest
**WILL MARK BRAINLEST ANSWER, IF RIGHT**​

Answer:

28500

Explanation:

Force equation - F = m * a

F = 950 * 30

F = 28500

Answer:

too little body fat is a health risk

Explanation:

IF you do not have enough body fat you can have bad things happen to you

Answer:

A the charge has only one path through which it can flow.

Answer:

speed

Explanation:

Given: an incomplete sentence

To fill: the blank

Solution:

Speed is not a vector quantity but a scalar quantity as it has magnitude but no direction.

Speed = Distance ÷ Time

You can calculate an average speed if you know both the total distance and the total time of the trip.

Average speed = Total distance ÷ Total time

Answer:

D. Moving the objects closer together

Explanation:

A.P.E.X.

took the quiz

The mechanical equilibrium condition allows to find the value of the normal for the body is:

Newton's second law establishes a relationship between the force, the mass and the acceleration of bodies, in the special case that the acceleration is zero, it is called a mechanical equilibrium condition.

       ∑ F = 0

A free body diagram is a diagram of the forces without the details of the bodies, in the attachment we can see this diagram, let's write the equilibrium condition for each axis.

x- axis

          Fₓ -fr = 0

y-axis

          F_y + N – W =0

Let's use trigonometry to find the components of the applied force.

            Cos 30= [tex]\frac{F_x}{F} [/tex]

            sin 30 = [tex]\frac{F_y}{F } [/tex]

            Fₓ = F cos 30

            [tex]F_y[/tex] = F sin 30

The weight of a body is the mass times the acceleration due to gravity.

           W = m g

Let's substitute.

           F sin 30 + N – m g = 0

           N= m g – F sin 30

Let's calculate.

           N = m 9.8 – 150 sin  30

           N = m 9.8 - 75

To finish the calculation, the mass of the body must be known, suppose a value of 10 kg.

          N=10 9.8 -75

          N = 23N

In conclusion using the mechanical equilibrium condition we can find the value of the normal for the body is:

Learn more about the mechanical equilibrium condition here: brainly.com/question/12804448

Answer:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.

Explanation:

I could be wrong but I would say B :)

Have a good day!

answer:

i believe the answer is d

explanation:

here's why;

c. is incorrect because everything has a gravitational force.

a. is also incorrect because gravity is what holds the tennis ball down and keeps it on the ground.

i don't really know how to explain why b. is wrong, but d. is the correct answer because the force of friction opposes the motion of an object, causing moving objects to lose energy and slow down.

good luck :)

i hope this helps

**please let me know if this was incorrect**

have a great day !!

Answer:

Acceleration, a = 2.47 seconds

Explanation:

Given the following data;

Time, t = 1.8 seconds

Distance = 4 meters

Initial velocity = 0 m/s (since it's starting from rest)

To find the acceleration of the toy car, we would use the second equation of motion;

[tex] S = ut + \frac {1}{2}at^{2}[/tex]

Where;

S represents the displacement or height measured in meters.

u represents the initial velocity measured in meters per seconds.

t represents the time measured in seconds.

a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

Substituting into the formula, we have;

[tex] 4 = 0(1.8) + \frac {1}{2}*a*(1.8)^{2}[/tex]

[tex] 4 = 0 + \frac {1}{2}*a*3.24[/tex]

[tex] 4 = \frac {1}{2}*a*3.24[/tex]

Cross multiplying, we have;

[tex] 8 = 3.24a[/tex]

[tex] a = \frac {8}{3.24}[/tex]

Acceleration, a = 2.47 seconds

Answer:

Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. ... To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd.

Explanation:

Definition of work in physics

Answer:

density of the object

volume of the immersed part of the object

Answer:

option A

Explanation:

the diameter is twice the length of the radius

hope it helps

true

Explanation:

this is because melting point and boiling point decreases down the group because they are held together by attractions between positive nuclei and delocalised electrons

Answer:

Nuclear fission

Explanation:

your so very welcome

Answer:

The tire fills up just like anything else that holds air when u pump a ball or tire up it fills all the way up cause it is a small confined space and after filling it with air the atoms of the air fill the tire up

Explanation:

The period of the sound wave having frequency of 457Hz is 0.0022 s.

The frequency refers to the number of waves that pass a fixed point in unit time.

Time period is equal to the reciprocal of frequency.

                           i.e. T = 1 / f

So, The period of the sound wave having frequency of 457Hz will be

                                T = 1/457

                            ∴ T = 0.002188 s

Now , rounding to the nearest value we get , 0.0022 s

Thus , The period of the sound wave having frequency of 457Hz is 0.0022 s.

Learn more about frequency here -

https://brainly.com/question/254161

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Explanation:

20 joule is your answer

Answer:

here

mass m =100kg

distance d=50m

acceleration due to gravity a =10m/s²

work =force×displacement

= ma/d=100×10/50=20joule

Answer:

Rectilinear propagation of light

Answer:

It is always said that mass is same everywhere.

Answer and Explanation:Option A->The innermost layer of the earth is known as the core. It is divided into inner core and outer core. It comprises of a high concentration of nickel and iron.

Answer:

balenced

Explanation:

Answer:

A) so the conditions for the expirament don’t affect the outcome

b) to make sure the results are conclusive and accurate

Explanation:

Answer:

a. Planets move on elliptical orbits with the Sun at one focus.

Explanation:

Johannes Kepler was an astronomer who discovered that planets had elliptical orbits in the early 1600s (between 1609 and 1619).

The three (3) laws published by Kepler include;

I. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.

II. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.

Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.

III. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.

Hence, one of Kepler's laws of planetary motion states that planets move on elliptical orbits with the Sun at one focus. This is his first law of planetary motion.

Answer:

Planets move on elliptical orbits with the Sun at one focus.

Explanation:

Plato/Edmentum

Answer:

2400 km

Explanation:

30km for 1hr

Need up to 80 hrs , multiply both 80 and 30

So its 2400km

Answer:

.6 hours

Explanation:

to find time you divide distance by speed

Answer:

v = (10 i ^ + 0j ^) m / s,    a = (0i ^ - 9.8 j ^) m / s²

Explanation:

This is a missile throwing exercise.

On the x axis there is no acceleration so the velocity on the x axis is constant

           v₀ₓ =  10 m / s

On the y-axis velocity is affected by the acceleration of gravity, let's use the equation

           v_y = [tex]v_{oy}[/tex] - g t

           [tex]v_{y}^2 = v_{oy}^2 - 2 g (y - y_o)[/tex]

at the highest point of the trajectory the vertical speed must be zero

           v_y = 0

therefore the velocity of the body is

          v = (10 i ^ + 0j ^) m / s

the acceleration is

          a = (0 i ^ - g j⁾

          a = (0i ^ - 9.8 j ^) m / s²

The chemical secreted by glands that regulates the activities of different body cells is HORMONE.

Answer: When the isopropyl alcohol was boiled, it quickly boiled away. The water ALSO boiled away, but the alcohol was quicker. Isopropyl alcohol had a high vapor pressure because it boiled away very fast, and isopropyl alcohol had strong forces between its molecules (seen with the surface tension experiment.) The water boiled away slower, and had weaker forces between its molecules. So, the stronger the forces, the higher the vapor pressure

Explanation: