Freddie drives his car 10 km North. He stops for gas and then drives 5 km South. What is Freddie's displacement.

28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou

Which atomic model was proposed as a result of j. j. thomson’s work?

How many atoms of nitrogen are in the chemical formula ni(w on