Aman walks 54.5 meters east, then another 30 meter east. calculate his displacement relative to where he started.

Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)

What happens to atoms and chemical bonds during a reaction?

What determines the amount of inertia an object has