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Mechanical Equivalent of Heat

Title: Mechanical Equivalent of Heat
Category: /Science & Technology
Details: Words: 1418 | Pages: 5 (approximately 235 words/page)
Mechanical Equivalent of Heat
Mechanical Equivalent of Heat By: A.D. Haynes ........................................................................ [Abstract / Introduction] Long before physicists recognized that heat is a form of energy transfer resulting from the random microscopic motion of atoms, they defined heat in terms of the temperature changes it produces in a body. The traditional unit of heat is the calorie (cal), which is the amount of heat needed to raise the temperature of 1 g of water by 1˚C. The kilocalorie is 1000 cal: 1 kcal = 1000 …showed first 75 words of 1418 total…
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…showed last 75 words of 1418 total…initial temperature is To. Calculate the heat energy (Q) if the final temperature is T1. 2. The solid iron ball below has radius (R). The other variables are the same as in question #1. Calculate the heat energy (Q) again. 3. In our experience, suppose the Force is 500 N, the Radius is 10 cm, and there are 80 loop rotations. Suppose all the work is absorbed by 1 kg of water with the initial temperature being 15˚C. Calculate the final temperature.

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