Yo I'm bored 15 y. o hbu?? That's me in the pfp also low-key free points for yall

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?