Which is an example of kinetic energy? a. an archer's bow with the string drawn back
b. river water at the top of a waterfall
c. a Ferris wheel before it starts turning
d. a crumb falling from a table.

Determine the maximum r-value of the polar equation r =3+3 cos 0

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Which is not true about oxygen-17 and oxygen-18?