Aboat moves 60 kilometers east from point a to point b. there, it reverses direction and travels another 45 kilometers toward point a. what are the total distance and total displacement of the boat?
a. the total distance is 105 kilometers and the total displacement is 45 kilometers east.
b. the total distance is 60 kilometers and the total displacement is 60 kilometers east.
c. the total distance is 105 kilometers and the total displacement is 15 kilometers east.
d. the total distance is 60 kilometers and the total displacement is 45 kilometers east.

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.