Marc attaches a falling 328-kg object with a rope through a pulley to a paddle wheel shaft. He places the system in a well-insulated tank holding 23.2 kg of water. When the object falls, it causes the paddle wheel to rotate and churn the water. If the object falls a vertical distance of 88.6 m at constant speed, what is the temperature change of the water? (1kcal = 4 186 J, the specific heat of water is 4 186 J/kg?°C, and g = 9.80 m/s2)

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Q: Consider a person standing in a room at 20°C with an exposed surface area of 1.7 m2. The deep body…

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Q: At 16°C, a rod is exactly 19.82 cm long on a steel ruler. Both the rod and the ruler are placed in…

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Q: In an experiment, a 0.150 kg insulated aluminum can contains 300 g water at 20 °C. The can and the…

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Q: You drop an ice cube into an insulated container full of water and wait for the ice cube to…

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Q: Roger heats a brass metal cube (specific heat = 375 J/kg·°C) to 70.0°C and places the cube into an…

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Q: A 7 kg of glass bowl (c = 840 J/kg·K) contains 16 kg of water (c =4186 J/kg·K) at 25°C. 2.5 kg of…

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Q: A 2.00-kg metal block slides on a rough, horizontal surface inside an insulated pipe. After sliding…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.