What are two ways in which radio waves and x-rays are different?

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?