Physics, 14.12.2019 03:31, tdbstonefamliy
Copper is a very good conductor of heat and thus not a very good insulator. it has a thermal conductivity of 398 w/(m-°c). a square cu plate with cross-sectional area 0.15 ×10-2 m2 is sandwiched between two isothermal plates, each of which is at a different temperature. the cu plate is fully insulated along its exposed edges so that the only significant heat flux is directed through the thickness of the plate. one side of the cu plate is maintained at 190.8°c by an electric energy supply of 1,086 watts. assuming steady-state heat flow conditions, how thick, in mm, must this cu plate be so that the temperature on the other side of the cu plate does not exceed 24°c ?
Answers: 3
Physics, 21.06.2019 22:20, ayoismeisalex
1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?
Answers: 1
Physics, 22.06.2019 04:00, joshuabm42407
What is the final velocity of the initial velocity of 25 and -50?
Answers: 2
Physics, 22.06.2019 13:20, Jbutler15
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
Answers: 3
Copper is a very good conductor of heat and thus not a very good insulator. it has a thermal conduct...
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