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How does the resistivity of alloy compare with those of pure metal from which may have been formed?
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What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
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Current vs. forcewhat type of relationship does this graph show?
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How does the resistivity of alloy compare with those of pure metal from which may have been formed?...
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