A 2000-Kg Object Is Attached Via an Ideal Pulley System to to Paddle

question 62

Multiple Choice

A 200.0-kg object is attached via an ideal pulley system to paddle wheels that are submerged in 0.480 kg of glycerin at 20.0 °C in an insulated container as shown. Then, the object falls through a distance of 5.00 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 2410 J/ C^o) .

• A)4.90 °C
• B)28.5 °C
• C)24.9 °C
• D)40.4 °C
• E)8.47 °C

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