A wave with a frequency of 196 Hz has a wavelength of 7 meters.
What is the velocity of the wave?

What is the answer for this. the correct answer only

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work