Engineering, 17.04.2020 03:16, lizerator01
Warm air is blown over the inner surface of an automobile windshield to defrost ice accumulated on the outer surface of the windshield. Consider an automobile windshield (kw 5 0.8 Btu/h. ft. R) with an overall height of 20 in and thickness of 0.2 in. The outside air (1 atm) ambient temperature is 88F and the average airflow velocity over the outer windshield surface is 50 mph, while the ambient temperature inside the automobile is 778F. Determine the value of the convection heat transfer coefficient for the warm air blowing over the inner surface of the windshield, necessary to cause the accumulated ice to begin melting. Assume the windshield surface can be treated as a flat plate surface.
Answers: 2
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Warm air is blown over the inner surface of an automobile windshield to defrost ice accumulated on t...
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