A long thin uniform rod originally has a mass m, a cross-sectional area a, and a length l. It is in rotation about its center of mass with an angualr speed.

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

Anybody wanna ? (picture included? )

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults