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Aug 25, 2015 · The following relationship is key to understand the link between lbm and lbf: 1 lbf=32.174 lbm ft/s^2 Arm yourself with this knowledge so that you can fight the good fight: the next time you hear someon...
Apr 19, 2022 · I have been trying to wrap my head around this, but I really can't figure it out. I don't understand why the value for the specific weight of water differs when I directly convert it from $\\frac{N}...
Feb 16, 2021 · I have a question about work measured in foot-pound. Let's say we have a 10 pound-mass ($10$ $\\text{lb}_m$) object. Then since that 10 pound-mass ($10$ $\\text{lb}_m$) object gives 10 pound-force ($...
Olin's method yields the correct answer, but a dimensional analysis of the pressure number shows it using lbf. I barely understand how to go between lbf and lbm mass anyway, the only consistent way I get the right ans...
For extra fun: atmospheric air is $\sim 14.7 psi$, so the total force on the floor of the room (20 x 20) is more than 800,000 pounds!
Jan 10, 2021 · A thin walled double pipe counter flow heat exchanger is to be used to cool oil (Cp = 2198 J/kg°K) from 150°C to 40°C at a rate of 2.27kg/s by water (Cp = 4187 J/kg°K) that enters at 21°C at a rate...
Apr 21, 2015 · Is 1 kg/s of air flow rate equivalent to 1 m 3 /s? I am calculating supply air flow rate into a zone for an air conditioning system. The simulation software gives the result in m 3 /s but the mathematic...
It has been a while since I had thermodynamics and am attempting to solve this problem for work. I need to figure out the other two mass flow rates. I worked it out with specific heats, but don't r...
I have a 2 mm thick steel plate which is 300 mm long and 30 mm wide, supported at either end. It supports a weight-bearing wheel that can roll along the plate. It currently supports the maximum wei...
Mar 28, 2022 · I have a marine diesel engine, and I'd like to calculate the approximate fuel consumption based on the size of the engine, at a given number of RPM - specifically for the cruising recommended cruis...
