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Author Question: A mass is attached to a spring of spring constant 60 N/m along a horizontal, frictionless surface. ... (Read 400 times)

urbanoutfitters

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on: Jul 27, 2018
A mass is attached to a spring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go.
 
  It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?
  A) 0.50 s
  B) 1.0 s
  C) 1.5 s
  D) 2.0 s
  E) 2.5 s

Question 2

A gas undergoes a process A-B that traces a straight line in the p-V diagram. At A the gas has a pressure of 75 kPa and a volume of 12 L. At B the pressure is 60 kPA and the volume is 20 L. The heat gained in this process is 600 J.
 
  The internal energy of the gas at A is 70 J. What is the internal energy of the gas at B? A) 60 J
  B) 10 J
  C) 190 J
  D) 130 J
  E) 70 J


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eliasc0401

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


urbanoutfitters

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

mochi09

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Reply 3 on: Yesterday
Excellent

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