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Author Question: A bobsled makes a run down an ice track starting at 66 m vertical distance up the hill. If there is ... (Read 64 times)

kodithompson

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  • Posts: 566
on: Jul 28, 2018
A bobsled makes a run down an ice track starting at 66 m vertical distance up the hill. If there is no friction, what is the velocity at the bottom of the hill?
 a. 27 m/s
  c. 44 m/s
  b. 36 m/s
  d. 54 m/s

Question 2

A heat engine receives 6000 J of heat from its combustion process and loses 3600 J through the exhaust and friction. What is its efficiency?
 a. 33
  c. 67
  b. 40
  d. 73


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akemokai

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

B

Answer to Question 2

B


kodithompson

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

tkempin

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Reply 3 on: Yesterday
Excellent

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