The multiple reflection of a single sound wave is a/an
a. reverberation.
b. echo.
c. diffraction.
d. refraction.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island