Physics, 28.11.2019 00:31 jayleengrant
Asolid sphere is rolling without slipping down an incline. at the bottom of the incline there is a ramp that creates a "quarter-pipe." a quarter-pipe is one quarter of a circle, when viewed from the side. the sphere is released from rest. 4 m above the bottom of the incline. the sphere rolles without slipping down the incline and back up the quarter-pipe. the sphere leaves the quarter-pipe 30 cm above the bottom of the incline and is launched vertically (straight into the air). (a) (15 points) determine the height above the bottom of the incline the ball will reach after teaving the quarter-pipe. (you may ignore any effects due to air resistance.) (b) (10 points) how would the height determined in part (a) change if the ramp were friction- less. explain, briefly. justifications should be made using concepts from class.
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Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
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Asolid sphere is rolling without slipping down an incline. at the bottom of the incline there is a r...
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