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An electron is to be accelerated in a uniform electric field having a strength of 1.60 106 V/m.
(a) Find what energy in keV is given to the electron if it is accelerated through 0.790 m?
(b) Find over what distance would it have to be accelerated to increase its energy by 50.0 GeV (as in the Stanford Linear Accelerator, which is actually smaller than this)?
A parallel-plate air capacitor has a capacitance of 940 pF. The charge on each plate is 2.10 µC. How much work is required to double the separation
A 1.2 µF capacitor has an electric field of 0.8x105 V/m between two metal plates 1.1 mm apart. What is the energy stored on the capacitor
A 5.20 g pop up toy is compressed 1.50 cm and pops up to the height of 50 cm the spring constant is 270 Nm. What is the loss of energy.
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances,it can be large enough to send the spacecraft outward from the Sunon a cost-free but slow trip. Suppose that the spa..
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.
The 1994 Winter Olympics included the aerials competition inskiing. In this event skiers speed down a ramp that slopes sharplyupward at the end. The sharp upward slope launches them into theair, where they perform acrobatic maneuvers.
A disk with mass m = 8.5 kg and radius R = 0.35 m begins at rest and accelerates uniformly for t = 18.8 s, to a final angular speed of ? = 28 rad/s. What is the moment of inertia of the disk?
A light spring of constant k = 155 N/m rests vertically on the bottom of a large beaker of water, What is the elongation, DeltaL, of the spring
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. The speed of sound in air at the ambient temperature is 336 m/s. How far below the top of the well is the surface of the water?
A hammer thrower rotates at a rate of 2.9 rev/s just prior to releasing the hammer. If the hammer is located 1.4m away from the axis of rotation, what is the centripetal acceleration experienced by the athlete?
A cycle wheel rotates uniformly through 2.0 revolutions in 4.0 second. Find what is the frequency of the wheels rotation
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