A ball of mass m = 10 kg is lifted up to some height and has 300 J of potential energy. Then the ball is droped. What is its velocity at the bottom of its descent.
What is the balls original height?

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?