Physics for Scientists and Engineers, Vol. 1
6th Edition
ISBN: 9781429201322
Author: Paul A. Tipler, Gene Mosca
Publisher: Macmillan Higher Education
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Chapter 7, Problem 17P
To determine
The total energy used by all cars in United States in a year.
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When it rains, water vapor in the air condenses into liquid water, and energy is released. (a) How much energy is released when 0.0356
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1.50x10¹1 J, how many homes could be heated for a year with the energy determined in part (a)?
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Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg mostly in the palms and fingers. Your answer must have three significant figures and the temperature change in centigrade.
A 220 J of energy is required to raise the temperature of the temperature of
aluminum from 15°C to 35°C. Calculate the mass of aluminum in kilograms.
(specific heat of ahuminum = 900 J/kg-Co)
Chapter 7 Solutions
Physics for Scientists and Engineers, Vol. 1
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
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