The drawing shows robin hood (mass = 85.0 kg) about to escape from a dangerous situation. with one hand, he is gripping the rope that holds up a chandelier (mass = 240 kg). when he cuts the rope where it is tied to the floor, the chandelier will fall, and he will be pulled up toward a balcony above. ignore the friction between the rope and the beams over which it slides, and find (a) the acceleration with which robin is pulled upward and (b) the tension in the rope while robin escapes.

Ascientist is working with a new kind of quantum dot to make a dye. he is applying newton’s laws to the particle, but it seems to be breaking these laws of physics. which action will most likely the scientist study the particle’s motion? a. he needs to remember that the particle is too large for quantum analysis. b. he must continue to use newtonian mechanics, but he needs to learn more about the particle. c. he needs to use quantum mechanics, not newtonian mechanics, because this is a nanotechnology product. d. he must determine new physical laws that only apply to quantum dots.