Runner A starts at x = 0 and runs with a velocity of +3.0 m/s toward runner B. Runner B starts at the same time at x = 20 m and runs with a velocity of -2.0 m/s toward runner A. Where do they meet, and how much time has clapsed since they started running?

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little