You serve a volleyball with a mass of 2.1kg. The ball leaves your hand with a speed of 30 m/s. How much energy does the ball have?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states

Area around a charged object where the objects can exert a force on another charged objects is an electric