Which of the following describes volume
a. the number of particles or amount of matter
b. the amount of space that matter ocupies
c. how fast the particles are moving
d. amount of massin a certain place

How do you tell if someone actually cares about you? and just say they do?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground