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Author Question: The gravitational potential energy of a system 1.depends on the reference configuration for zero ... (Read 50 times)

newyorker26

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on: Jul 28, 2018
The gravitational potential energy of a system
  1.depends on the reference configuration for zero potential energy.
  2.is always positive.
  3.is always negative.
  4.is none of these.

Question 2

A certain uniform spring has a constant k. Now the spring is cut in half. What is the relationship between k and the spring constant k of each resulting smaller spring?
  1. Each k = k/2
  2. Each k = 2k
  3. Each k = k/4
  4. Each k = 4k


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firehawk60

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

1

Answer to Question 2

2


newyorker26

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Reply 2 on: Jul 28, 2018
Gracias!

vickybb89

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Reply 3 on: Yesterday
Excellent

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