Acar left point a at 7: 30 am and arrived at point b, 162 miles away at 10: 30 am. what was its average speed in miles per hour? 53545556skip

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.

How to tell if a molecule is polar or nonpolar with electronegativity

A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.