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A 0.20 kg mass is attached to a spring with a spring constant equal to 240...

A 0.20 kg mass is attached to a spring with a spring constant equal to 240 N/m, and this mass-spring system is oscillating on a horizontal surface that is nearly frictionless. The spring was originally stretched a distance of 0.12 meters from its equilibrium (unstretched) length.

a) How much did the potential energy of this mass-spring system change when the spring was originally stretched 0.12 meters?

b) What is the maximum speed the mass will attain in its oscillation?

c) Where in the motion is this maximum speed attained?

d) What is the frequency of oscillation of this mass-spring system?

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