Frank shined a beam of light at the surface of a mirror. A piece of paper above the mirror was lit up. what cause the light of shine on the paper above the mirror?

A) the light was refracted
B) the light was reflected
C) the light was amplified
D) the light was diffracted

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.