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The magnetic potential energy stored in a certain inductor is 22.5 mJ when the current in the inductor is 57.5 mA.
a) Compute the inductance.
b) What current is required for the stored energy to be 150 mJ?
A block of mass 10 kg lies to the left of a 5 kg block. The 10 kg block is pushed with a force of 30 Newtons at an angle of 30 degrees South of East. Determine the net acceleration of the system
A 10.0 kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s. What is the speed of the crate when it arrives at the lower surface
A movie star catches a reporter shooting pictures of her at home. She claims the reporter was trespassing and to prove her point, How far away from the subject was the reporter standing
a car is traveling over a hill. if using a cartesian coordinate system with origin o at the top of the hill the hills
A typical sound level for a buzzing mosquito is35dB, and that of a vacuum cleaner is approximately 69dB. Approximately how many buzzing mosquitoes will produce a sound intensity equal to that of a vacuum cleaner?
sound with frequency 1220 leaves a room through a doorway with a width of 1.16 . at what minimum angle relative to the
A dam holds back water. In the dam is a turbine that produces power with an efficiency of 0.73. what is the velocity of the water leaving the turbine
An electric fan is turned off, and its angular velocity decreases uniformly from 490rev/min to 210rev/min in a time interval of length 4.45s. Find the number of revolutions made by the fan blades during the time that they are slowing down in Part A
How to compute Average power output
A 200 weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s^2 for 33 s, then runs out of fuel. Ignore any air resistance effects. Illustrate what is the rocket's maximum altitude?
A 6.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.7 m/s2, find the force exerted by the rope on the bucket
A +1 uC charge is held 10 cm directly above the origin. A -1 uC charge is held 5 cm directly to the right of the origin. What is the electric potential at the origin
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