Lincoln weighs 400 newtons. what’s his mass rounded to the nearest kilogram? assume that acceleration due to gravity is 9.8 n/kg.

Identify the arrows that show the correct direction of heat transfer. 66°f 112°f 98°f

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

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.