A train that has a mass of 5,000,000 kg is coasting along a train track at 4 m/s when the engineer applies the brakes. As she applies the brakes, the ground exerts a force of 100,000 N on the train, in the direction opposite to the motion of the train. Eventually the train comes to a stop. What distance does it take for the train to stop?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

Gunpowder residue is most likely to show up where on a shooters hands

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.