A quantum system has three energy levels, so three wavelengths appear in its emission spectrum. The shortest observed wavelength is 263 nm ; light with a 434 nm wavelength is also observed. What is the third wavelength?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery