Un objeto se encuentra quieto a cierta altura del suelo. Su EM es 200 J (J = Joule unidad de energía). ¿Cuánto vale su EC? ¿Cuánto su EP? ¿Qué pasa con su EP y su EC a medida que cae en el vacío?

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created

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?