The radius of the merry-go-round is 10 meters. The Chile has a mass of 40 kilograms. What is the child’s moment of inertia

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

If a balloon is taken outside on a very cold day, what will occur?