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Question: In the electron-positron collider at Cornell University, electrons and positrons acquire oppositely directed momenta of 4.0GeV/c before they collide head-on.
a. Suppose that after the two particles collide they unite to form a new particle at rest. What is the rest mass of the new particle?
b. Suppose the new particle decays into a proton and an antiproton that move in opposite directions. What is the kinetic energy of either particle?
c. What is the velocity relative to the speed of light, and what is the momentum of either particle?
An alpha particle from a radioactive source is directed into a cloud chamber in a uniform magnetic field of 0.80T. find what are its momentum and energy
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Suppose that a NASCAR race car is moving to the right with a constant velocity of + 98 m/s. What is the average acceleration of the car
A projectile is fired with an initial speed of 113 m/s at an angle of 60.0° above the horizontal from the top of a cliff 49.0 m high. determine the time to reach maximum height
A woman at an airport retrieves her 25.5 kg suitcase and begins to roll it on the floor by pulling on the strap. What is the magnitude of the acceleration of the suitcase
Light enters a liquid (from air) at an angle of 31° with respect to the normal and is refracted into the liquid at an angle of 28° with respect to the normal. Determine the index of refraction of the liquid
Gallium Arsenide (GaAs) is a semiconductor used for light emitting diodes in your CD player and microwave amplification in your cell phone. The energy gap between the valence band and the conduction band is Δ = 1.43 eV. In the first part of th..
A wire has a resistance of 15.9. It is melted down, and from the similar volume of metal a new wire is made that is 3 times longer than the original wire. Evaluate what is the resistance of the new wire
q1. a forceof 5.0 n moves a 6.0 kg object along a rough floor at a constant speed of 2.5 ms.a how much work is done in
Louise spikes a volleyball during a game. At the instant the volleyball leaves her hand, How long will it take for the ball to strike the floor
A projectile projectile is fired at an upward angle of 45o from the top of a 265-m cliff with a speed of 185 m/s. What will be its speed when it strikes the ground below
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