An AC generator with an output rms voltage of 42.0 V at a frequency of 60.0 Hz is connected across a 20.0-?F capacitor. Find the following. (a) capacitive reactance ? (b) rms current A (c) maximum current in the circuit A (d) Does the capacitor have its maximum charge when the current takes its maximum value? Yes No
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Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
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At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
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During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
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An AC generator with an output rms voltage of 42.0 V at a frequency of 60.0 Hz is connected across a...
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