Voltmeter having internal resistance
A capacitor is charged to a potential of 12.0V and is then connected to a voltmeter having an internal resistance of 3.70M ohms . After a time of 4.20s the voltmeter reads 3.0V . What is the capacitance?
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Determine (a) T2 in 0R, and (b) the rate of exergy destruction within the heat exchanger, in Btu per lb of air flowing. Let T0=520 0R and P0=1 atm.
Determine the COP of the device when extracting thermal energy from an environment at 300 K and delivering thermal energy at 350 K.
They pull on the asteroid with a force of 403 N. Initially the tug and the asteroid are at rest, 539 m apart. How much time does it take for the ship and the asteroid to meet?
On one side the gate holds back a 0.5 m deep body of water. On the other side, a 10 cm diameter water jet hits the gate at a height of 0.5 m.
The lathe is equipped with a 15-hp electric motor and has a mechanical efficiency of 80%. The spindle is 500 rpm. Estimate the maximum feed that can be used before the lathe begins to stall.
If a nearby building is the same height and 60m away, how far below the top of the building will the ball strike the nearby building?
Determine the time required from the beginning of the first hole to the completion of the last hole, assuming the most efficient drilling sequence will be used to accomplish the job.
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