A 200.0 kg object is attached via an ideal pulley system to paddle wheels that a

Question

A 200.0 kg object is attached via an ideal pulley system to paddle wheels that are submerged in 0.844 kg of glycerin at 21.4

A 200.0 kg object is attached via an ideal pulley system to paddle wheels that are submerged in 0.844 kg of glycerin at 21.4 degree C in an insulated container as shown. Then, the object falls through a distance of 4.83 m causing the paddle wheel to turn. Assuming all of the mechanical energy lost by the falling object goes into the water, determine the final temperature of the glycerin. The specific heat capacity of glycerin is 2,410 J/ Co). A gold sphere has a radius of 1.125 cm at 25.0 degree C. If 6,566 J of heat is added to the sphere, what will the final volume of the sphere be? Gold has a density of 19,300 kg/m^3 at 25.0 degree C, a specific heat capacity of 129 J/(kg C degree), and a coefficient of volume expansion of 42.0 10^?6/C degree.

Explanation / Answer

B) 28.5

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