Which of the following describes the way a population can be dispersed? Large population
O Uniform population
O Species-area effect
O Species richness

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.

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?

In which of these cases are the two wave points considered to be in phase with each other?