Which two planet move faster in its orbit , mercury or pluto? why

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

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.)