The strength of an electromagnet CANNOT be increased by?

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.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius