4 points A basketball (m = 0.7 kg) approaches the backboard (missing the rim entirely) at a speed of 3.3 m/s. The rebound careens off the backboard at a speed of 0.9 m/s, a
true brick. Determine the magnitude of impulse delivered by the backboard onto the basketball.
O 1.68 kgm/s
0
2.31 kgm/s
ОО
1.22 kgm/s
0.63 kgm/s

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.