In this problem you will consider the balance of thermal energy radiated and absorbed by a person. assume that the person is wearing only a skimpy bathing suit of negligible area. as a rough approximation, the area of a human body may be considered to be that of the sides of a cylinder of length l=2.0m and circumference c=0.8m. for the stefan-boltzmann constant use Ο=5.67Γ10β8w/m2/k4.if the surface temperature of the skin is taken to be tbody=30βc, how much thermal power prb does the body described in the introduction radiate? take the emissivity to be e=0.6.express the power radiated into the room by the body numerically, rounded to the nearest 10 w.
Answers: 3
Physics, 22.06.2019 04:30, elizabethseoane1829
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at β20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 10:30, Kathryn014
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 11:00, sydneyclack
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
Answers: 1
In this problem you will consider the balance of thermal energy radiated and absorbed by a person. a...
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