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Author Question: A force of 4.0 N applied to a spring compresses it by 8.0 cm. What is the amount of work done to ... (Read 17 times)

RYAN BANYAN

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on: Jul 29, 2018
A force of 4.0 N applied to a spring compresses it by 8.0 cm. What is the amount of work done to compress the spring by an additional amount of 5.0 cm?
 
  A) 20 J
  B) 0.26 J
  C) 0.50 J
  D) 2.0 J
  E) 50 N/m

Question 2

A block is on a frictionless horizontal table, on earth. This block accelerates at 1.9 m/s2 when a 90 N horizontal force is applied to it. The block and table are then set up on the moon where the acceleration due to gravity is 1.62 m/s2.
 
  What is the weight of the block on the moon? A) 77 N
  B) 67 N
  C) 58 N
  D) 48 N
  E) 39 N


morganmarie791

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  • Posts: 336
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


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