Need help with magnitude of force problem in pic

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology