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I'm new to the forum and after doing a basic search I wasn't able to find anything that would help me with a particular problem. I'm taking an online Aerodynamics course with Embry-Riddle and I can't figure out how to solve the following:

## Homework Statement

If air is being pumped into a 10 ft^3 tank at a rate of 0.01 lbm/sec, and the tank temperature is being held constant at 70 F. How fast (lb/ft^2/sec) is the pressure in the tank rising?

## Homework Equations

Equation of state (pressure = density*specific gas constant*temperature)

dp/dt=dM/dt * RT/V (or something like that)

## The Attempt at a Solution

I tried to get things going by solving for pressure with standard sea-level density then finding the mass (mass= density*volume) but.....then I just get lost.

Any help would be greatly appreciated. Thanks

Al