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Author Question: A bow is drawn so that it has 40 J of potential energy. When the arrow is fired its kinetic energy ... (Read 48 times)

Pineapplelove6

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on: Jul 29, 2018
A bow is drawn so that it has 40 J of potential energy. When the arrow is fired its kinetic energy is ideally
 
  A) less than 40 J.
  B) more than 40 J.
  C) 40 J.

Question 2

A 2-kg mass that weighs 20 N has 40 J of potential energy relative to the ground. What is its height?
 
  A) 1 m
  B) 2 m
  C) 3 m
  D) 4 m
  E) none of the above


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jointhecircus

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

Answer: C

Answer to Question 2

Answer: B


Pineapplelove6

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Reply 2 on: Jul 29, 2018
Gracias!

amandalm

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Reply 3 on: Yesterday
Wow, this really help

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