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Two parallel plates, each having area A = 2157.0cm2 are connected to the terminals of a battery of voltage Vb = 6.0 V. The plates are separated by a distance d = 0.45cm. You may assume that the separation between the plates is small compared to a linear dimension of the plate. The battery is now disconnected from the capacitor. What is V, the voltage across the capacitor?
Three moles of an ideal monatomic gas expand at a constant pressure of 2.70 ; the volume of the gas changes from 3.40×10?2 to 4.60×10?2 . First calculate the initial temperature of the gas. Second calculate the final temperature of the gas. Thrid ..
A 1.00kg piece of cheese is placed on a vertical spring of negligiblemass and force constant k = 1800 N/m that is compressed 15.0 cm. how high does the cheese rise from this initial position
Jane is standing on the platform waiting for the train. The train approaching the platform from the north at 20 m/s blows its whistle when it is 100 m away from Jane. What frequency of sound does Jane hear
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.7×1011W. Determine the rms value of the electric field
A 3.0-kg cylinder falls vertically from rest in a very tall, evacuated tube 20m above the surface of the earth. what is its kinetic energy just before it hits the earth
A dockworker applies a constant horizontal force of 73.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. If the worker stops pushing at the end of 5.50 s, how far does the block move in the next 5.90 s
If you drop an object from a height of 1.3 m, it will hit the ground in 0.52 s. how long will it take the ball to hit the ground
A sphere with mass 0.3 kg and radius 0.05 cm is rolling without slipping along a horizontal surface at a speed of 10 m/s. What height does the sphere come to rest
An empty parallel plate capacitor is connected between theterminals of a 7.5-V battery and chargedup. The capacitor is then disconnected from the battery, and thespacing between the capacitor plates is doubled.
An air conditioner is used to keep the interior of a house at a temperature of 25C while the outside temperature is 34C, what is the mechanical power required to keep the house cool?
What is the speed of a beam of electrons when the simultaneous influence of an electric field of 1.48×104V/m and a magnetic field of 4.66×10?3T, What is the period of the orbit
A 500-g block is released from rest and slides down a frictionless track that begins 2.00 m above the horizontal. At the bottom of the track, What is the velocity of the mass just before it strikes the spring
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