A thick layer of oil is floating on the surface of water in a tank. A beam of light traveling in the oil is incident on the water interface at an angle of 29.5 ∘ from the normal. The refracted beam travels in the water at an angle of 47.0 ∘ from the normal. What is the refractive index of the oil?

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank