True or false
the bending of a wave is called reflection (reflection is underlined)
if false write the correct for the underline word

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

The necleus of an atom is made up of what subatomic particles?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.