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Author Question: Translational (linear) speed is displacement divided by time, and rotational speed is: a. the same ... (Read 24 times)

mp14

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on: Jul 28, 2018
Translational (linear) speed is displacement divided by time, and rotational speed is:
 a. the same thing.
  b. angular displacement divided by time.
  c. rotational acceleration divided by time.
  d. the distance along the edge of a rotating disk divided by time.
  e. translational speed divided by displacement.

Question 2

Assuming that no energy is lost in the form of heat, after the ball compresses the spring shown here, what is the maximum potential energy it may once again attain?
 a. 0 J.
  b. 5 J.
  c. 2.5 J.
  d. Significantly less than 5 J because of energy lost as heat because of friction.
  e. Significantly less than 2.5 J because of energy lost as heat because of friction.


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onowka

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

b


mp14

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

bulacsom

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Reply 3 on: Yesterday
Wow, this really help

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