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Problem: A person having skin of surface area 1.85m2 and temperature 30.0oC is resting in an insulated room where the ambient air temperature is 20.0oC. In this state, a person gets rid of excess heat by radiation.
Part A: By how much does the person change the entropy of the air in this room each second? (Recall that the room radiates back into the person and that the emissivity of the skin is 1.00.)
I don't know how to get that answer for the above problem. Please help! Thanks.
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 33km2. What mass of water (in kg) fell on town? One cubic meter of water has a mass of 103kg.
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question if a soap bubble is 140 nm thick what wavelength is most strongly reflected at the center of the outer surface
A horizontal 810-N merry-go-round of radius 1.60 m is started from rest by a constant horizontal force of 50 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round
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