Two objects are moving downward at a speed of 3 cm/s. Object A has a mass of 2kg and object B has a mass of 1kg. You want both objects to move to the left at a speed of 3 cm/s 1. In what direction should you exert the forces that will make the desired change?

2. Describe what strength force or forces would be needed to cause the desired velocity change.

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

Properties seen when one one substance changes to another are known as properties