How much energy is stored in the magnetic field
An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A. (a) How much energy is stored in the magnetic field? (b) At what rate is thermal energy developed in the inductor?
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Evaluate the overall phase of pre-proposal activities and make at least one recommendation for improving the phase. Provide specific examples that illustrate how your recommendation would help.
During a heavy rain, the drops are falling at a constant velocity and at an angle of 10.5° west of the vertical. What is your walking speed if the speed of the drops relative to the ground is 5.1 m/s?
What are the key demands, other than the right to vote, put forward by the Seneca Falls Convention?
A baseball is thrown at an angle of 25 degrees relative to the ground at a speed of 23.0 m/s. If the ball was caught 42.0 m from the thrower,, how long was it in the air? How high was the tallest spot in the ball's path?
How much energy is stored in the magnetic field? (b) At what rate is thermal energy developed in the inductor?
During the pitching motion, a baseball pitcher exerts an average horizontal force of 60 N against the .15 kg baseball while moving it through a horizontal displacement of 2.0 m before he releases it. If the baseball player's velocity is zero, how
An unknown volume of laughing gas has a temperature of 325 K and a pressure of 0.5 kPa. The temperature is decreased to 320 K, the pressure is increased to 1.2 kPa, and the final volume of the gas is 48.0 L. What was the initial volume of the laug
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Assume that only static friction supplies the centripetal force, and determine the radius r of the tire.
A cannonball is fired horizontally from the top of a cliff. The cannon is at height h = 50.0 m above ground level, and the ball is fired with initial horizontal speed v(initial). Assume acceleration due to gravity to be g = 9.80 .
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