A 75.0 kg person rides up and down in an elevator that starts from rest, accelerates from rest to 2.0m/s in 2.0s, continues at a constant velocity of 2.0m/s for 2.0s, and then comes to a stop from 2.0m/s in 2.0s. Calculate what the scale would read in each of the following situations. Show all work including free-body diagrams. Round off g to 10 m/s2.

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these