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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 409 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Citrus fruits are very susceptible to cold weather, and extended ex posure to subfreezing temperatures can destroy them. Consider an 8-cm- diameter orange that is initially at 158C. A cold front moves in one night, and the ambient temperature suddenly drops to -6°C, with a heat transfer coefficient of 15 W/m2 ·K. Using the properties of water for the orange and assuming the ambient conditions to remain constant for 4 h before the cold front moves out, determine if any part of the orange will freeze that night. Solve this problem using analytical one-term approximation method (not the Heisler charts).
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