Democritus thought that matter was made of tiny particles
a. of earth, air, fire, and water.
b. that could not be divided.
c. that could be divided.
d. that were all round and smooth.

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

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?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system