32) a bicyclist starts a timed race at 6.0 mi/h. in order to win, he must average 21 mi/h. assuming
constant acceleration from the start, how fast must he be traveling at the end of the race?
a) 24 mi/h
b) 36 mi/h
42 mi/h
d) 30 mi/h

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

How can waves travel through ground?