With a barrier at the same height as the release point at 0.21 m, what happens to the 0.05 kg golf ball through its first swing? Remember that both delta h = 0.21 & mechanical energy is conserved.

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

The law of reflection states that the angle of reflection is equal to the angle of