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Physics, 30.08.2019 17:10 trodrickwilliams2019
Acopper rod is 0.875 m long with a rectangular cross section of dimensions 0.0515 m by 0.0855 m. the ends of the rod are held at 42.9°c and 97.7°c, but the rod is otherwise insulated from its environment. find the heat current (the amount of heat that flows per unit time) through the rod. the thermal conductivity of copper is 385 w/(m⋅k) . heat current:
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A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
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Acopper rod is 0.875 m long with a rectangular cross section of dimensions 0.0515 m by 0.0855 m. the...
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