example 3: the world speed record on water was set on october 8, 1978 by ken warby of blowing dame australia. If Ken drove his motorboat a distance of 1000.0 m in 7.045s, how fast was his boat moving?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?