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An x-ray photon of wavelength 150.0 pm is absorbed by a stationary helium atom.
(a) What is the momentum of the photon?
(b) What is the velocity of the helium atom (4.0026 amu) after absorbing the photon?
(c) What is the kinetic energy of the helium atom in J/mol?
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A system has a heat source supplying heat at a rate of 149 W and is doing work at a rate of 104.3 W. At what rate is the internal energy of the system changing
How high a tree would a 79.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount.
A bar magnet is held above the center of the coil with its north pole pointing down. What is the direction of the induced current in the coil
an astronaut must journey to a distant planet which is 210 light years from earth. what speed will be necessary if the
electrons flow through a 2.2 mm diameter aluminum wire at 2.2 x 10^-4 m/s. *electron density of aluminum is 6 x 10^28 m^-3*
Suppose one gallon of gasoline produces 1.1 multiplied by 108 J of energy, and this energy is enough to operate a particular car for 26 miles.
The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90° and sending it north at 1.51 m/s. Illustrate what are the speed and direction of the first ball after the collision?
An adventurous crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stop to rest at the middle of the rope. The rope will break if the tension in it exceeds 2.50x10^4 N, and our hero's mass is 9..
a 2.00 kg block slides along a horizontal surface and is moving at 5.00 ms just as it strikes a horizontally-mounted
Consider a 61.5-cm long lawn mower blade rotating about its center at 3230 rpm. Calculate the linear speed of the tip of the blade
collectible coins are sometimes plated with gold to enhance their beauty and value. consider a commemorative
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