Physics, 17.10.2019 04:00 dmccray3357
You have a rectangular solid. you would like to pass current through it so that it has the least resistance. should you direct the current perpendicular to side a, b, or c? explain. b: in a diļ¬erent experiment, current is passed through side a (and out the opposite side). use 0.2mĆ0.1mĆ0.02m for the dimensions of the solid and assume that the solid is made of copper so its resistivity is rho = 1.69Ć10ā8 Ļm and neā = 8.49Ć1028 eā/m3. the potential diļ¬erence across the solid is maintained at 0.001 v. determine the drift velocity of the electrons and then how long it would take a single electron to pass completely through the copper.
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How would a small bar magnet be oriented when placed at position x?
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Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
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Physics, 22.06.2019 15:10
Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground
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Physics, 22.06.2019 20:00
Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?
Answers: 3
You have a rectangular solid. you would like to pass current through it so that it has the least res...
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