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Author Question: Daisy (50. kg mass) skates on ice at 4.0 m/s to greet her friend (70. kg mass), who is standing ... (Read 56 times)

jeatrice

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on: Jul 27, 2018
Daisy (50. kg mass) skates on ice at 4.0 m/s to greet her friend (70. kg mass), who is standing still, with open arms. As they collide, while holding each other, with what speed do they both move off together?
 
  A) 2.5 m/s
  B) 1.7 m/s
  C) zero
  D) 5.0 m/s

Question 2

Heat is added to an ideal gas at 20.C. If the internal energy of the gas increases by a factor of three during this process, what is the final temperature?
 
  What will be an ideal response?


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pami445

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

606.C


jeatrice

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Reply 2 on: Jul 27, 2018
Excellent

xiaomengxian

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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