Author Question: A mass is attached to a spring of spring constant 60 N/m along a horizontal, frictionless surface. ... (Read 460 times)

urbanoutfitters · **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