Gear or pulley ratio from tooth counts or diameters, with the output speed and torque for a given input rpm, torque and efficiency.
Shell and head thickness to ASME VIII-1 (UG-27, UG-32), the plate to buy, the MAWP it gives you and the hydrotest pressure — with the formulas shown.
Series and parallel totals for any list of resistors — add or remove resistors and both equivalents update live.
Length change of a steel, aluminum, copper or stainless member over a temperature change, and the stress if it is restrained.
Hydraulic horsepower, brake horsepower and motor input kW for a pump from flow, head, specific gravity and efficiencies.
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