How much power does an Ox pulling a plow 20 m cross a field exerting 120J of work over a period of 15 s

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere