Physics, 02.08.2019 06:30 crystalclear99

A10n falling object encounters 4n of air resistance. what is the net force on the object?

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Physics, 22.06.2019 07:50, singhmanny3526

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.