The light ray is entering the water from the air. how should the light ray respond to the change of medium? a. it will slowdown and bend upward b. it will speed up and bend upward c. it will slow down and bend downward d. it will speed up and bend upward

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

Which lists the organs in the correct order as food passes from the mouth to anus?

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).