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A capacitor is connected across an ac generator whose frequency is 640 Hz and whose peak output voltage is 130 Volt. The rms current in the circuit is 4.4 A.
(a) Find the capacitance of the capacitor?
(b) Find the magnitude of the maximum charge on one plate of the capacitor?
Two equally charged, 1.00 g spheres are placed with 2.00 cm between their centers. What is the magnitude of the charge on each sphere
a car starts at rest. it then accelerates at a rate of 1.3 ms east for 8.2 seconds. if itcontinues as this new velocity
An automobile has a mass of 1500 kg, and its aluminum brakes have an overall mass of 6.00 kg. (a) Assume all the mechanical energy that transforms into internal energy when the car stops is deposited in the brakes and no energy is transferred out of ..
An arrow is fire with a speed of 20m/s at the block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it.
What is its velocity at impact? What will its average velocity be? What will its average speed be.
spark plugs should be tightened to a specified torque of 13.33 nm. you have a wrench that is 0.3 m long but because of
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 m and a total mass of 120kg. The turntable is initially rotating at 3 rad/s about a vertical axis through its center.
Player serves a tennis ball 2.2 m above the ground. The ball leaves his racquet with a speed of 56 m/s at an angle 10 degree below the horizontal. what's the ball clea the net
A proton is initially at rest at a point where the potential is 515V. Sometime later the proton is at a point where the potential is 190V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
The work from the engine goes into an ideal refrigerator which extracts 5900.0 J of heat from its cold reservoir. Find the coefficient of performance of the ideal refrigerator
Steel train rails are laid in 12.2m -long segments placed end to end. The rails are laid on a winter day when their temperature is -2.00 oC. what is the stress in them on a summer day when their temperature is 33.0 oC
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
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