assess a student set up a line of dominoes so that each is standing vertically next to another. he then pushes the first one and each falls down in succession. how does this demonstration represent a wave? how is it different?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

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?