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Q1. A vertical container with base area measuring 14 cm by 15 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020 g. Suppose that the volume of empty spaces between candies is negligible. If the height of the candies in the container increases at the rate of 0.29cm/s, at what rate (kilograms per minute) does the mass of the candies in container increase?

Q2. A scuba diver shines the flashlight from beneath the surface of water (n = 1.33) such that the light strikes the water-air boundary with the angle of incidence of 37°. At what angle is the beam refracted?

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