At the bottom of a mine shaft, the air pressure is 138,000 Pa. How deep is
the mine?
(Unit = m)
1 atm = 101300 Pa
Pair = 1.29 kg/m3

Plz help

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

True or false graphs must include scales that increase by the same amount

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.