Physics, 13.01.2021 19:20 sssavannahh
Directions: Find the mistakes and omissions in the statements below. Rewrite each statement correctly on the
lines provided.
6. You can tell an object has moved because its velocity has changed.
7. Displacement is how far an object moves.
8. Average speed is indicated on the speedometer.
9. A vertical line on a distance-time graph indicates that an object is stationary.
10. Speed is calculated by multiplying the time of travel by the distance traveled.
A race car driving around a track at 240 km/h has a constant velocity.
Motion 23
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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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