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Author Question: If the height of water behind a dam is increased by a factor of two, then the maximum kinetic energy ... (Read 67 times)

lilldybug07

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on: Jul 28, 2018
If the height of water behind a dam is increased by a factor of two, then the maximum kinetic energy of the water at the bottom of the dam will increase by a factor of _____.
 a. one b. two c. four d. zero

Question 2

A motorcycle daredevil wants to ride up a 50.0 m ramp set at a 30.0 incline to the ground. It will launch him in the air and he wants to come down so he just misses the last of a number of 1.00 m diameter barrels. If the speed at the instant when he leaves the ramp is 60.0 m/s, how many barrels can be used?
 a. 79
  b. 318
  c. 332
  d. 355
  e. 402


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ambernicolefink

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

b

Answer to Question 2

D


lilldybug07

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Reply 2 on: Jul 28, 2018
Wow, this really help

debra928

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Reply 3 on: Yesterday
Excellent

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