10 rectangular object's mass from greatest to least. You can choose books, sandwiches, phones, pictures - as long as the shape is a rectangle. Then rank the objects from the one with the heaviest mass to the one with the lightest mass.

Which lists the organs in the correct order as food passes from the mouth to anus?

Which sound characteristic is not affected by the relative motion of an object

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?