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Author Question: If a turntable's rotational speed is doubled, then the linear speed of a pet hamster sitting on the ... (Read 61 times)

abc

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on: Jul 29, 2018
If a turntable's rotational speed is doubled, then the linear speed of a pet hamster sitting on the edge of the record will
 
  A) double.
  B) halve.
  C) remain the same.

Question 2

Newton's Cradle consists of an aligned row of identical elastic balls suspended by strings so they barely touch one another. When two balls are raised from one end and released, they strike the row and two balls pop out from the other end.
 
  If instead, one ball popped out with twice the speed of the two, this would violate
  A) momentum conservation.
  B) energy conservation.
  C) both of these
  D) none of these


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JaynaD87

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


abc

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Reply 2 on: Jul 29, 2018
Wow, this really help

Dominic

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Reply 3 on: Yesterday
:D TYSM

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