A marble starts at the origin and rolls 45 meters East. Describe where it ends up, in vector notation.

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.

The energy released by a nuclear fusion reaction is produced when

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped