Aprojectile is launched straight up at 141 m/s . how fast is it moving at the top of its trajectory? suppose it is launched upward at 45 degree above the horizontal plane. how fast is it moving at the top of its curved trajectory?

What is binding energy and separation energy

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?