Asoftball and a ping-pong ball are dropped off of a tall building. which
statement describes in what order they hit the ground and why?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging