An Apparatus for Measuring the Mechanical Equivalent of Heat Uses

question 11

Multiple Choice

An apparatus for measuring the mechanical equivalent of heat uses a crank to turn a small aluminum cylinder, which is being retarded by a belt. Friction with the belt heats up the cylinder, and the work done is then set equal to the heat gained by the cylinder. In one such experiment, the radius of the cylinder is 3.00 cm, the tension on one side of the belt is 50.0 N and on the other it is zero N. How much work is done turning the crank 212 times?

• A) 2000 J
• B) 4000 J
• C) 19600 J
• D) 637 J
• E) 9800 J

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Definitions:

Sliding Trailer Bogie

A component of a trailer that allows the bogie (wheel assembly) to slide along the trailer's length for weight distribution and compliance with axle weight regulations.

Locking Pins

Components used to secure two or more parts together, preventing movement or separation.

Mechanical

Pertaining to machinery or the working parts of a machine, often involving physical movements and forces.

AWG Wiring

Wiring that is sized according to the American Wire Gauge standard, which determines the thickness of the wire based on a numerical scale.