Several rocks slide down a mountainside, each with the same velocity. which rock will have the greatest momentum?

a. the biggest rock.
b. the smallest rock
c. the rock in front
d. the rock in the rear

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)

Which composition of water moves to begin a deepwater current?