Hi, anyone who has course hero or something like that can you please look up the answers to (6.2.3 Explore: Electromagnetic Radiation physical science) please and thank you I will mark brainliest please and thanks so much❤️

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

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.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?