Aviscous fluid is flowing through two horizontal pipes. the pressure difference p1 - p2 between the ends of each pipe is the same. the pipes have the same radius, although one is twice as long as the other. how does the volume flow rate qb in the longer pipe compare with that in the shorter pipe?
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The material that keeps its new shape after it is stretched is called?
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Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?
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Physics, 22.06.2019 19:30
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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Aviscous fluid is flowing through two horizontal pipes. the pressure difference p1 - p2 between the...
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