a truck moves under pedestrian bridges and past sidewalks. two teachers observe this truck traveling on the highway. both report. based on her statement describ an observation point where teacher b is standing

Which two objects have the greatest gravitational force acting between them

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

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.