The nonreflective coating on a camera lens with an index of refraction of 1.25 is designed to minimize the reflection of 638-nm light. If the lens glass has an index of refraction of 1.55, what is the minimum thickness of the coating that will accomplish this task

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.

Hat is the most commonly cited cause of occupational injuries in the healthcare sector? a. repositioning of patients b. manual pipetting c. slips and trips d. workplace violence

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.