If a light ray is traveling from air into a glass prism, how will the direction of the light ray change after it enters the prism?
a. the light ray will be refracted toward the normal.
b. the light ray will be refracted away from the normal.
c. the light ray will be refracted perpendicular to the normal.
d. the light ray will be refracted along the normal.
e. the light ray will not be refracted.

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

Which best represents the law of conservation of mass ?

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.