Why does a bowling ball move without acceleration when it rolls along a bowling alley?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Heterogeneous mixture with larger particles that never settle is

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?