In this video, the puck sits on a room-temperature aluminum ramp. warmed by the ramp, the dry ice sublimates off the bottom of the puck and forms a thin layer of co2 gas that levitates the puck, allowing it to slide down the ramp with very low friction. this process also creates a cool and mysterious smoky appearance of the puck, perhaps contributing to einstein's excitement.

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?

The smallest particle of an element that retains its identity in a chemical reaction. true or false

What instrument is used to measure liquid volume?