What is the critical angle of a diamond having a refractive index of 2.42? use air as the second medium. air has the refractive index 1.00.

a. 14.9°
b.24.4°
c.36.6°
d.40.9°

Abird sitting high in a tree is an example of what type of wnergy

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

How to tell if a molecule is polar or nonpolar with electronegativity