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Physics, 23.06.2019 12:30
The earth's magnetic field, with a magnetic dipole moment of 8.0×1022am2, is generated by currents within the molten iron of the earth's outer core. suppose we model the core current as a 3000-km-diameter current loop made from a 1000-km-diameter “wire.” the loop diameter is measured from the centers of this very fat wire.to decide whether this is a large or a small current density, compare it to the current density of a 7.0 a current in a 2.0-mm-diameter wire.
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Physics, 23.06.2019 15:40
The force required to make an object travel along a circular path is
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Physics, 23.06.2019 19:30
Luis is installing some 12-gage wire. how much resistance will there be throughout a distance of 400 feet?
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