If it takes you 20 joules of work to move a couch 10 meters in 10 seconds, what is the power?

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

What happens to atoms and chemical bonds during a reaction?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec