Two men each weigh 650 n. one man carries +1.0 c of excess charge, the other −1.0 c of excess charge. how far apart must they be for their electric attraction to equal 650 n?

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Aball horizontally thrown from a cliff at 8m/s