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A 0.534-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards.
(a) Find the momentum of the electron.
kg · m/s
(b) Find the kinetic energy of the electron.
eV
In a photoelectric effect experiment, a metal sample is illuminated by 10.0 mW of ultraviolet light of wavelength 240 nm. What is the longest wavelength of light that can knock electrons out of this metal
a pottery wheel is rotating initially with an angular velocity of 4.0rad/s clockwise. find the direction of the angular acceleration of the wheel
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.60 10-4 m2, find the cross-sectional area of the water stream at a point 0.09 m below the faucet
A sphere that is a perfect blackbody radiator has a radius of 0.100 m, Calculate the net rate at which the sphere radiates energy
A slide projector has a lens of focal length 150. mm. An image 100. cm × 100. cm is formed of a slide whose dimensions are 50.0 mm × 50.0 mm
The speed of a bobsled is increasing because it has an acceleration of 2.4 m/s2. find the magnitude of the net force that acts on the bobsled
an ideal gas expands isothermally,perfoming 5.57x10^3 j of work in the process. calculate the heat absorbed during this expansion
A football player weighing 75 kg running at 2 m/s toward west tackles a 70 kg player running at 1.5 m/s in the opposite direction
A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground. what is the average force exerted by the ground on the ball
At what speed do a bicycle and its rider, with a combined mass of 100-kg, have the equal momentum as a 1500 kg car travelling at 5 ;{ rm m}/ {rm s}.
In the troposphere, the part of the atmosphere that extends from the surface to an altitude of about 11 km, calculate the pressure p at height y=8863m
A current of 1mA is passed through a slab of semiconductor material of thickness 1mm with a magnetic field of 0.1 T applied in the perpendicular direction. Estimate the band gap energy for the material
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