John is pulling a sled to haul up a snowy hill to this cabin. The slope is 220 from the horizontal, the sled has a mass of 16.0 kg, the coefficient of kinetic friction between the sled runners and the snow is 0.130, and John can exert a force of 1400 N parallel to the surface of the hill. What is the largest load of wood (in kg) that John can take in one trip?​

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.