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Author Question: A railroad car collides with and sticks to an identical railroad car that is initially at rest. ... (Read 131 times)

bclement10

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on: Jul 29, 2018
A railroad car collides with and sticks to an identical railroad car that is initially at rest. After the collision, the kinetic energy of the system
 
  A) is the same as before.
  B) is half as much as before.
  C) is one third as much as before.
  D) is one fourth as much as before.
  E) is one quarter as much as before.

Question 2

If a quantity you calculated had units of kg  m/s, what type of quantity could it be? (There could be more than one correct choice.)
 
  A) momentum
  B) kinetic energy
  C) work
  D) impulse
  E) force
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Kimmy

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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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bclement10

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Reply 2 on: Jul 29, 2018
Excellent

triiciiaa

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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