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fball558
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Question is
Problem 7: Joule’s paddle wheel experiment consists of a falling weight which spins a
paddle-wheel in an insulated barrel of water. As the weight falls, the water warms up.
Assume idealized conditions with no friction in the pulley, string, and bearings. How
much does the temperature of the water change? Assume there is 0.4 kg of water, the
weight has m=100 kg and it falls 1 m. The specific heat capacity of water is 4.2 J/g/K.
here is a website to a pic of what a Joule's paddle wheel experment looks like.
has something to do with the energy from the weight moving the 1 m. this turns paddle making thermal energy but don't know how to find this or how it is related
http://upload.wikimedia.org/wikipedia/commons/c/c3/Joule's_Apparatus_(Harper's_Scan).png
A. 0.19 degrees
B. 0.29 degrees
C. 1.16 degrees
D. 0.58 degrees (correct answer)
E. – 3.6 degrees
Problem 7: Joule’s paddle wheel experiment consists of a falling weight which spins a
paddle-wheel in an insulated barrel of water. As the weight falls, the water warms up.
Assume idealized conditions with no friction in the pulley, string, and bearings. How
much does the temperature of the water change? Assume there is 0.4 kg of water, the
weight has m=100 kg and it falls 1 m. The specific heat capacity of water is 4.2 J/g/K.
here is a website to a pic of what a Joule's paddle wheel experment looks like.
has something to do with the energy from the weight moving the 1 m. this turns paddle making thermal energy but don't know how to find this or how it is related
http://upload.wikimedia.org/wikipedia/commons/c/c3/Joule's_Apparatus_(Harper's_Scan).png
A. 0.19 degrees
B. 0.29 degrees
C. 1.16 degrees
D. 0.58 degrees (correct answer)
E. – 3.6 degrees