Abattery connects to a resistor. the rate of energy dissipated by the resistor is 1.44 w. the rate of energy supplied by the battery isa) greater than 1.44 w. b) less than 1.44 w. c) equal to 1.44 w. d) not enough information is stated. the voltage of the battery must be known.

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?