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We wrap a light, nonstretching cable around a 9.00kg solid cylinder with diameter of 34.0cm . The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 13.0kg block and release the block from rest. As the block falls, the cable unwinds without stretching or slipping.
How far will the mass have to descend to give the cylinder 470J of kinetic energy? (h= in m)
Two capacitor plates are equally and oppositely charged. They are separated by 1.4cm. An electron is released from rest at the surface of the negative plate and, at the same time, a proton is released from rest at the surface of the positive plate.
A 9000pF capacitor holds plus and minus charges of 1.35×10?7C . What is the voltage across the capacitor
a rocket starts from rest and moves upward from the surface of the earth. for the first 10s of its motion the vertical
An electric drill draws 3.7 A rms at 140 V rms. If the current lags the voltage by 40 degree, what is the drill's power consumption
Neptune is an average distance of 4.50 x 109 kilometer from the Sun. Find the length of the Neptunian year given that the Earth is 1.50 x 108 kilometer from the Sun on the average
A series RCL circuit operating at 60Hz contains a 35Ωresistor and a 8.2μF capacitor. If the power factor ofthe curcuit is +1.00 what is the inductance of the inductor in this circuit
A boy of mass 50 kg runs up a hill of vertical height 300 m in 20 minutes. calculate the work he does climbing the hill
How much time would be required to stop a 2,000kg car that is moving at 80.0 km/hr if the braking force is 8,000N? If a space probe weighs 39,200N on the surface of the earth, what will be the mass of the probe on the surface of Mars?
A glass coffee pot has a circular bottom with a 9.00cm diamteter in contact with a heating element that keeps the coffee warm with a continous heat transfer rate of 50.0w, what is the temperature of the bottom of the pot, if it is 3.00mm thick and..
Two lenses, one converging with focal length 20.5cm and one diverging with focal length 11.0cm, are placed 25.0cm apart. Find the final image distance from second lens
A generator has a square coil consisting of 288 turns. The coil rotates at 117 rad/s in a 0.218-T magnetic field. What is the length of one side of the coil
A camera is supplied with two interchangeable lenses, whose focal lengths are 35.0 and 150.0 mm. A woman whose height is 1.80 m stands 8.00 m in front of the camera. What is the height (including sign) of her image on the film, as produced by each..
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