If you are going to measure the mass of your dog, which of the following units should you use? centigram kilogram gram nanogram

What are the 4 phases of matter in order of increasing engery content?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

What energy is it when you flip on a switch on a lamp