1)A golf ball has one-tenth the inertia and three times the speed of a baseball.

Question

1)A golf ball has one-tenth the inertia and three times the speed of a baseball.

Part A

What is the ratio of the magnitudes of their momenta?

Express your answer using three significant digits.

2)The speed of a bullet can be measured by firing it at a wooden cart initially at rest and measuring the speed of the cart with the bullet embedded in it. (Figure 1) shows a 12-gbullet fired at a 3.5 -kg cart. After the collision, the cart rolls at 1.1 m/s .

3)Part A

If you have 1 quart of water in one container and 1 quart of water in another container and you pour all the water from both into a larger container, what volume of water do you end up with?

Part B

Suppose you have a 1-quart container filled with marbles and a large pail containing 1 quart of water. When you dump the marbles into the pail, is the final volume the same as in part a?

An 82-kg physicist and a friend are ice-skating. The physicist, distracted, collides from behind at 7.0 m/s with his friend, who is skating at 5.0 m/sin the same direction. After the collision, the physicist continues in the same direction at 4.0 m/s, but his friend is now moving (still in the same direction) at 8.0 m/s.

5)

A load of coal is dropped from a bunker into a railroad hopper car of inertia 3.0 × 104kgcoasting at 0.50 m/s on a level track. The car's speed is 0.20 m/s after the coal falls.

Part A

What is the inertia of the load of coal?

Express your answer with the appropriate units.

Part A

What is her inertia?

Express your answer with the appropriate units.

Part A

What is the bullet's speed before it strikes the cart?

Express your answer with the appropriate units.

Please I need the answers as soon as possible . thank you

2)The speed of a bullet can be measured by firing it at a wooden cart initially at rest and measuring the speed of the cart with the bullet embedded in it. (Figure 1) shows a 12-gbullet fired at a 3.5 -kg cart. After the collision, the cart rolls at 1.1 m/s .

3)Part A

If you have 1 quart of water in one container and 1 quart of water in another container and you pour all the water from both into a larger container, what volume of water do you end up with?

Part B

Suppose you have a 1-quart container filled with marbles and a large pail containing 1 quart of water. When you dump the marbles into the pail, is the final volume the same as in part a?

4)

An 82-kg physicist and a friend are ice-skating. The physicist, distracted, collides from behind at 7.0 m/s with his friend, who is skating at 5.0 m/sin the same direction. After the collision, the physicist continues in the same direction at 4.0 m/s, but his friend is now moving (still in the same direction) at 8.0 m/s.

5)

A load of coal is dropped from a bunker into a railroad hopper car of inertia 3.0 × 104kgcoasting at 0.50 m/s on a level track. The car's speed is 0.20 m/s after the coal falls.

Part A

What is the inertia of the load of coal?

Express your answer with the appropriate units.

Part A

What is her inertia?

Express your answer with the appropriate units.

Part A

What is the bullet's speed before it strikes the cart?

Express your answer with the appropriate units.

Explanation / Answer

Baseball momentum

mass= m

Velocity =v

P =mv

Golfball momentum

mass = m/10

velocity = 3v

P'=(m/10)*3v

P/P'=10/3 (Baseball/Golfball) =3.333

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