A firecracker is placed in the middle of a cluster of stationary billiard balls. The firecracker-billiard ball system sits on a frictionless surface. As the firecracker explodes, the balls scatter. What is the momentum of the SYSTEM after the explosion of the firecracker? w) greater than the momentum of the system before the explosion x) equal to the combined speed of the balls y) equal to the mass of the balls z) zero

A firecracker is placed in the middle of a cluster of stationary billiard balls. The firecracker-billiard ball system sits on a frictionless surface. As the firecracker explodes, the balls scatter. What is the momentum of the SYSTEM after the explosion of the firecracker? w) greater than the momentum of the system before the explosion x) equal to the combined speed of the balls y) equal to the mass of the balls z) zero
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1 Answer

Answer :

ANSWER: Z -- ZERO
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Ten coulombs of positive charge are placed on an irregularly-shaped, solid piece of copper. Once the charge has stopped moving, the electric field inside the copper is: w) zero x) changes as one over the radius squared y) becomes smaller as you approach the center z) becomes larger as you approach the center

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Description : A ball is thrown horizontally from the top of a cliff. Assuming no air resistance, the acceleration of the ball while it is in flight is: w) in the vertical direction only x) in the horizontal direction only y) in the vertical and horizontal directions z) zero.

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A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is: w) half the velocity of the first satellite x) the same as the velocity of the first satellite y) twice the velocity of the first satellite z) four times the velocity of the first satellite

Description : A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is: w) half ... first satellite y) twice the velocity of the first satellite z) four times the velocity of the first satellite

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Description : A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second interval?

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Description : A spring ball of mass 0.5 kg is dropped from some height. On falling freely for 10 s, it explodes into two fragments of mass ratio 1:2.

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Description : Of the following choices, approximately how many times greater is the mass of a proton than the mass of an electron? w) 200 x) 2000 y) 20,000 z) 200,000 

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Description : Mass and velocity are combined to give A. angular momentum B. equilibrium C. acceleration D. linear momentum

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What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Description : What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Last Answer : Momentum is mass times velocity. But in this case, you don'teven need to calculate that: If I understand correctly, the ballshave the same mass, the same speed, and they move exactly inopposite directions - so ... other words, if oneball has a momentum of +M, the other one will have a momentum of-M.

What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Description : What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Last Answer : Momentum is mass times velocity. But in this case, you don'teven need to calculate that: If I understand correctly, the ballshave the same mass, the same speed, and they move exactly inopposite directions - so ... other words, if oneball has a momentum of +M, the other one will have a momentum of-M.