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Author Question: A rubber ball bounces off of a wall with an initial speed v and reverses its direction so its speed ... (Read 356 times)

evelyn o bentley

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on: Jul 29, 2018
A rubber ball bounces off of a wall with an initial speed v and reverses its direction so its speed is v right after the bounce.
 
  As a result of this bounce, which of the following quantities of the ball are conserved? (There could be more than one correct choice.) A) the kinetic energy of the ball
  B) the momentum of the ball
  C) both the momentum and the kinetic energy of the ball
  D) None of the above quantities are conserved.

Question 2

Calculate the speed at which a 0.723-kg object has the same momentum as a 1.30-kg object that is moving 0.515c.
 
  A) 0.734c
  B) 0.712c
  C) 0.981c
  D) 0.592c
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thall411

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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evelyn o bentley

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

matt95

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Reply 3 on: Yesterday
Gracias!

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