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Author Question: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance ... (Read 210 times)

lracut11

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A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance as it falls. At what speed will its gravitational potential energy (relative to the base of the cliff) be equal to its kinetic energy?
 
  A) 3.1 m/s
  B) 4.4 m/s
  C) 6.3 m/s
  D) 8.9 m/s
  E) 13 m/s

Question 2

As more resistors are added in series to a constant voltage source, the power supplied by the source
 
  A) increases.
  B) decreases.
  C) does not change.
  D) increases for a time and then starts to decrease.



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bulacsom

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Answer to Question 1

C

Answer to Question 2

B




lracut11

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


kthug

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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