The atmosphere pressure at town A is 50cmHg while at sea level the pressure is 76cmHg. Calculate the altitude of the town given that the density of air is 1.25Kg/m^3

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Which of these is the best way to manage a natural resource

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.