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Calculate the center to center distance between the wires when the force of gravity and magnetic force are balanced Fg=Fm. the mass on the wire is 10 mg. The lenght of the wire is 30.5 cm and the current passed through the wire is 1.2 amps.
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. What is the electron's orbital frequency
A particle is projected from the surface of Earth with a speed equal to 3.4 times the escape speed. When it is very far from Earth
A bat flies toward a wall, emitting a constant sound of frequency 2.00 rm kHz. This bat hears its own sound plus the sound reflected by the wall.
A 2.0{\rm mm} -diameter ball bearing has 3.0×109 excess electrons. What is the ball bearing's potential
How to find the length
While running, a person dissipates about 0.524 J of mechanical energy per step per kilogram of body mass. If a 65.5 kg person dissipates a power of 76.6 W during a race, explain how fast is the person running?
A 3.0m length of straight wire carries a current of 16A in a uniform magnetic field of 50mT whose direction is at an angle of 36? , Find the force on the wire.
Suppose that you wish to fabricate a uniform wire out of 0.850 g of copper. Assume the wire has a resistance R = 0.800 ?, What will be the diameter of the wire
The rms voltage across a 0.012uF capacitor is 1.4V at a frequency of 58hz. What is the maximum current through the capacitor
A policeman uses a radar gun to detect the speed of drivers in a 65 mph (29.06 m/s) zone, What is the driver's speed, Is the driver breaking the speed limit
An ideal gas in a piston is placed in a refrigerator, which removes 686 J of energy from the gas via cooling. find the net change in the internal energy of the gas in the piston
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