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An electron is moving such that its de Broglie wavelength equals the Compton wavelength. How fast is it moving, expressed as a fraction of the speed of light c? Hint: You should use a relativistic expression for momentum.
An air puck of mass \(m_{1}\) is tied to a string and allowed to revolve in a circle of radius R on a frictionless horizontal table. determine the radial force acting on the puck
How long would it take for an object dropped from the Leaning Tower of Pisa (height 54.6 meters) to hit the ground, and how fast was the object traveling at the moment of impact
the uniform electric field between the two plates of a capacitor is 120 n and the potential difference between plates
A large bell is hung from a wooden beam so it can swing back and forth with negligible friction. What should be the length L of the clapper rod for the bell to ring silently-that is, for the period of oscillation for the bell to equal that for the ..
seven charged particles are fixed in place to form a square with an edge length of 3.8 cm. How much work must we do to bring a particle of charge
Suppose a monatomic ideal gas is contained within a verticalcylinder that is fitted with a movable piston. The piston isfrictionless and has a negligible mass. Through what distance does the piston drop
A block of wood is held in place against a rough wall by someone pushing on it with a force directed upward at 28 degrees above the horizontal, What is the mass of the block of wood
An electric heater carries a current of17.5A when operating at a voltage of 120 V. What is the resistance of the heater?
Assuming that the Earth is spherical and recalling that latitudes range from 0 degrees at the Equator and 90 degrees N at the North Pole, at what angle below the horizantol would the tunnel be directed
a boat moves through the water with two forces acting on it. one is a 1700-n forward push by the water on the propeller
A crate of potatoes of mass 8.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.72 and μk = 0.43. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up t..
(1) A circular wheel has a radius R = 0.45 + or - 0.02 m. The wheel is observed to be rotating uniformly with period T = 2.00 +or- 0.05 s. (i) Compute the frequency with which the wheel spins (ii) Compute the angular speed of the wheel. (iii) Comp..
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