Calculate the electric force that exists between two objects that are 5.0 × 10–2 m apart and carry charges of 2.5 × 10–6 C and –3.2 × 10–6 C. Is this force attractive or repulsive?

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

Why are graphs useful when interpreting data