If a train is traveling at 15 m/s east and the conductor sees a car stranded in the middle of the tracks ahead of it, will the train be able to stop in time? This situation is referring to what Newton's law of motion?

Determine the maximum r-value of the polar equation r =3+3 cos 0

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in