10. Find the critical angle for an ethyl alcohol-air boundary if the indes of refraction of ethyl alcohol is 1.361.

Ball b is hanging from an inextensible cord. an identical ball a is released from rest when it is just touching the cord and drops through the vertical distance h a 5 8 in. before striking ball b. assuming e 5 0.9 and no friction, determine the resulting maximum vertical displacement h b of the ball b

How have the competing explanations' experiments on atoms affected the development of the atomic model?

What is the magnitude of the resultant vector round your answer to the nearest tenth