The working formula for the electric charge (Eq.(13) in the text) contains a constant involving the properties of the gas environment, the plastic sphere, and the electric field chamber combined in Eq. (12). List these properties, together with their SI units of measurement?

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.

What is the measure of a change in an objects velocity?

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.