Hi guys im from mars, the red planet in our solar system. Please help my homework. ½ + ½ =

Just one question, and with step

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

Diamond will scratch quartz. true or false

What is the measurement of how fast an object moves relative to a reference point?