Which of the following is correct regarding a wave in the open ocean? a. water particles move in a straight line, in the opposite direction from that the wave is moving. b. water particles move vertically in circular orbital motion. c. water particles move in a straight line, in the same direction that the wave is moving. d. water particles move in an almost circular horizontal path.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.