Suppose a train engine is pulling ten cars. the last car becomes separated from the train. what happens to the motion of the rest of the train and why?

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?