What is a wave's speed if it has a wavelength of 3.2x10^-7 m and a period of 2.8x10^-12s​

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?