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A rope is used to pull a box which has a mass of 2.03 kg above...

A rope is used to pull a box which has a mass of 2.03 kg above the floor as far as 4.56 m. The force of the rope F is 6 N in a direction that has an angle of 33.1 degrees above the floor surface.
a. How much work does F do?
b. What is the increase in thermal energy in a box-floor system?
c. What is the kinetic friction coefficient between the box and the floor?

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