The equation shows a neutralization reaction. h2so4 + 2naoh na2so4 + 2h2o what is na2so4?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

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.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving