if you dig a hole through the earth, from one hemisphere to the other, and drop a tennis ball into it, would it get stuck at the center, since thats where gravity's at, or would it pop up out the other side??

Explanation:

The potential energy (Ep) = 4500 J

Ep = m. g. h

=> m = Ep/(g.h)

m = 4500/(10×10)

= 4500/100

= 45

so, the mass = 45 kgs

Answer:

when the molecules are heated , they move faster and the space between them will increase . they become very lossly packed and thus evaporate. this process can also be called evaporation in detail

when the molecules are cooled down, they move slower and they have very less space between. they becomes tight as they are cooled tgus condenses this process can also be called as condensation in detail

Answer:

When the molecules are molecules are heated the bond holding the molecules together becomes lose and hence making the molecules to vibrate and move more faster which also makes the kinetic energy to increase.

Explanation:

Answer:

C.

Explanation:

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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Curling is a sport in which players slide stones across a  distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side.  There are two  brigades. Each  platoon is trying to keep the other  platoon's  monuments down from the target by knocking their  monuments out of the way.

Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object."  This relates to the formula F =  ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.

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Answer:

It has more kinectic energy.

Explanation:

Since the car speed is increasing the kinetic energy is also increasing.

Its caused by motion.

Hope this helps. :)

Have a nice day/night.

Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.

Explanation:

Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping

Answer:

Arizona.

Explanation:

Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.

Answer:

use their own matter to create nuclear reactions

generate their own energy

are classified primarily by temperature

usually seem bright if they are close to Earth

Explanation:

The answers that apply for the stars are 1,2,4 and 5. Stars usually seem bright if they are close to Earth.

A star is a heavenly body made up of a brilliant spheroid of plasma held together by gravity. The Sun is the closest star to Earth.

Many additional stars may be seen with the normal eye at night, but due to their great distance from Earth, they appear as stationary points of light in the sky.

The answers that apply for the stars are as follows;

1. Usually seem bright if they are close to Earth.

2. Stars are terrestrial bodies.

4. They generate their own energy.

5. Stars are classified primarily by temperature.

The answers that apply for the stars are 1,2,4 and 5.

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Answer:

a)the arrow will have a very little kinetic energy after the archer and its realesead the string in the picture of the right

Explanation: you are at my same school and I pass it correct also as shown in the image it should be like that

Answer:

your friend is correct he's right

Answer: A

Explanation:The Pawn moves directly forward, never backward or to the side. Pawns capture a piece that is one square diagonally forward. Though Pawns normally cannot move diagonally, this is the only way they capture.

Based on the information provided, the best move to capture a hanging piece would be: A) Nxg3

Nxg3 would be the best move to capture a hanging piece.

This move involves sacrificing the knight to capture the hanging piece, which could be a bishop or pawn, depending on the position of pieces. After Nxg3, the opponent may capture the knight with different piece, but the player who made the move will have successfully captured the hanging piece.

However, it's important to note that the best move ultimately depends on the overall strategy of the player and the position of the other pieces on the board.

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Answer:

Explanation:

1 meter = 100 cm

1 cm = 10 mm

Then,

0.2 m *  100 cm / 1 m =  20 cm

This does not seem like a physics question ??  

Answer:

multiple

Explanation:

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Answer:

A falling object is in free fall when the only force acting on the force is gravity.

Explanation:

Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.

Answer:

I would say a A river runs past the base of the cliff.

Answer:

yes, the net force is equally two forces sorry I am just try this question about

Explanation:

Answer:

sum

Explanation:

If two forces act on an object in the same direction, the net force is equal to the sum of the two forces.

Answer:   He can't grade it your to smart .

Explanation:

Answer:

Huh?

Explanation:

Answer:

C: Electrical to chemical

the electricity turns into chemical energy to light the candle.

Answer:

Can i get brainlist?

Explanation:

It is possibale only because of in new york it is alot colder with winds and

in california is alot cleaner but its closer to the soon 90 precent of the time

Answer:

I would say it's true

Explanation:

when u get older we have less bones

Answer:

i need more info

Explanation:

Answer:

Actually, There are 3 equation of motion

v=u+at

vsquare= usquare+ 2as

s=it+1/2atsquare

Some rules of motion are

When object starts from rest it's initial velocity is zero.

When object comes at rest It's final velocity is zero.

If a body moves with uniform velocity it's acceleration is zero.

Answer:

Polish it to shine

Explanation: