Recent content by thatshowifeel

Can the speed of the water be different even though the flow rate is the same? Part two says to find the speed of the water in the 3-inch diameter section in ft/s

Homework Statement Air flows through two 8"x10" ducts that merge into a single 18"x14" duct. (Ducts are in 3D) The average speed of air in each of the 8"x10" ducts is 30 ft/s. What is the volume flow rate, of air in the 18"x14" section of the duct? Express the volume flow rate in ft^3/s...

Homework Statement The speed of water flowing through the "influent" 4-inch diameter section of the piping system below is 3.0 ft/s. What is the volume flow rate of water in the piping system? Express the volume flow rate in ft^3/s Homework Equations The Attempt at a Solution I...

Ah. I missed that too. Thanks.

Just had a moment of understanding. If you had to put 665W of into it, but it only returned 532W, then those Watts can't be turned into energy! Also, just because something is 80% effective does not mean you can just take 80% of the energy and subtract it from the total. Totally get it!

So then the input power minus the output power is power that can't be converted to energy?

Thanks, mate.

Is this problem as simple as I think it is? Homework Statement A 532 Watt motor is 85% efficient. How much power cannot be converted to energy? Homework Equations The Attempt at a Solution 85\% of 532W\,=\,452.2W 532\,-\,452.2\,=\,80W