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2answers
13 views

Time to inflate paddleboard given compressor output

So I just bought an inflatable standup paddle board. The dimensions (inflated) equate to an approximate volume of 9 cubic feet. (This is a slight over approximation, but close enough for my purposes) ...
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1answer
46 views

Pressure vs Volume Calculation for air

I have 1 litre of air in a sealed container at atmosphere pressure (approx 15 psi absolute). I want to reduce pressure in the container by 1 psi ( 14 psi absolute or -1 psig). If I understand ...
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0answers
99 views

Formula for residence time/turnover rate with unsteady state

I'm not sure this is the correct place to ask my question... but maybe someone could still help me. I'm looking for a way to calculate the residence time/turnover rate. I have the production and ...
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0answers
29 views

Help with vacuums?

Okay, here is my understanding. Please correct me if anything here is incorrect. Suppose I have a cube with a side length of ten inches. It has a surface area of 600 square inches, and at an ...
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0answers
266 views

Mass, Volume, Density, and Pressure of Balloon Inside a Balloon

I'm not a physics guy so I'll apologize from the start if I put some erroneous terms. I just want to know the relationship of mass, volume, density and pressure of the two balloons if balloon A is ...