Find the approximate kinetic energy of a circular wheel of radius r and mass M that is rotating about its center at 2 cycles/s. Assume the wheel’s mass is concentrated at the rim and the mass of the wheel’s spokes is negligible.

Which composition of water moves to begin a deepwater current?

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.