On earth, the gravitational potential energy of a ball is 1881 J. If the same 32 kg ball was given the same amount of gravitational potential energy as on earth how high would it have to be above the surface? (Moons g= 3.7m/s

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

come closer and become far apart and become steam/gas

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers