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Physics, 21.06.2019 17:20
Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.
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Physics, 21.06.2019 22:30
Distinguish between a transverse wave and a longitudinal wave.
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In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door
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Physics, 22.06.2019 00:40
Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ
Answers: 3
Am = 500 kg sack of coal falls vertically onto a m = 2000 kg railroad flatcar which was initially mo...
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