Find out the angle of the thread

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Reference no: EM1359837

Q. A freight train has a mass of 1.20E+7 kg. If the locomotive can exert a constant pull of 8.36E+5 N, how long does it take to increase the speed of the train from rest to 80.7 km/hr?

Q. A small sphere with a mass of 3.00×10-3g and carrying a charge of 4.80×10-8 C hangs from a thread near a very large, charged insulating sheet, as shown in the figure . The charge density on the sheet is -2.50×10-9 C/m^2 . Find the angle of the thread.

Reference no: EM1359837

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