What velocity would a proton need to circle earth

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Q. What velocity would a proton need to circle Earth 1200 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4.00 10-8 T?

Q. What temperature change would cause a 0.10 % increase in the volume of a quantity of water that was initially at 20 degrees celsius?

Reference no: EM1351355

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