Suppose a person jumps in front of a train moving 60 [mi/h] and the person gets hit. If the mass of the train is 5,000,000 [lbs] and the person is only 150 [lbs], what is the magnitude of the impact force on the person and the train if the impact only lasted 0.001 [s]?

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

The two required components for a generator are

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages