Answer Happy

mec 2) A length L that appears in atomic engineering practices is given by the formula Lwhere me is the mass of an electron, c is the speed of light, and his the Planck's quantity. What are the dimensions of h? 3) in Figure, a stone is projected at a cliff of with an initial speed V, directed at angle above the horizontal. The stone strikes at A at time te after launching. Find the followings by using the known values initial speed Vo, angle o, time ta, and gravitational acceleration g.) 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 ground