How can the frequency of a wave be found? multiply its speed by its wavelength

divide its speed by its wavelength

multiply its amplitude by its wavelength

divide its wavelength by its speed

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Elements on the periodic table are ordered according to their