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A 2.10-F capacitor is connected to a 12.0-V battery for a long time, and then is disconnected. The capacitor briefly runs a 1.60-W toy motor for 19.0 s
A) After this time, by how much has the energy stored in the capacitor decreased? (answer in Joules)
B) What is the voltage across the plates?
c) How much charge is stored in the capacitor?
D) How much longer could the capacitor run the motor, assuming the motor ran at full power until the end? (answer in seconds)
A 1.70 cm x 1.70 cm square loop of wire with resistance 0.011 ohms has one edge parallel to a long straight wire. Determine what is the current in the loop
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A 41 cm long solenoid 1.20 cm in diameter is to produce a field of 0.395 mT at its center. How much current should the solenoid carry
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A photographer in a helicopter ascending vertically at a constant rate of 12.5 m/s accidentally drops a camera out the window, How long will it take the camera to reach the ground
There are four charges, each with a magnitude of 1.6 µC. Two are positive and two arenegative. Find the magnitude of the net electrostatic force experienced by any charge
A 2.2 kilogram cart is rolling along a frictionless, horizontal track towards a 1.2 kilogram cart that is held initially at rest. Evaluate the velocity of the first cart when the second cart was still at rest
A specific satellite was located in a circular orbit about 140 meter above the Earth. Find what time required for one complete revolution
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