What would be the mass of the object measured in the picture? I

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.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank