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A 0.367-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. (b) Find the kinetic energy of the electron.
The displacement of a wave traveling in the positive x-direction is D(x,t)=(3.5cm)sin(2.7x?122t), where xis in m and t is in s. What is the frequency of this wave
A model rocket blasts off from the ground, rising straight upward with a constant acceleration for a time of 1.90s. What is the maximum altitude of the rocket
A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. what speed must the player give the ball
Water is flowing through a pipe with a constriction. The diameter of the narrow section is one-third the diameter of the wide section. what is the velocity of the fluid in the wide section
For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash
A slab of a thermal insulator with a cross-sectional area of 110{\rm cm^2} is 2.90{\rm cm} thick. how much heat flows through the slab
after a completly inelastic collision between 2 objhects ofequal mass, each having initial speed v, what was the angle between their initial directions
Two newly discovered planets follow circular orbits around a starin a distant part of the galaxy. The orbital speeds of the planetsare determined to be 44.3 km/s and 60.5 km/s. The slower planet'sorbital period is 7.03 years.
The speed of light in a particular type of glass is 1.69 108 m/s. What is the index of refraction of the glass
a young hockey player stands at rest on the ice holding a 1.3-kg helmet. the player tosses the helmet with a speed of
A 28.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface, What is the force of friction acting on the block
Two metal spheres, each of radius 5.0 cm, have a center-to-center separation of2.3 m. Sphere 1 has charge+2.010-8 C. Sphere 2 has charge of -3.2 x 10-8 C. Calculate the potential on the surface of sphere 1
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