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At a time t seconds after it is thrown up in the air, a tomato is at a height of f(t) = -4.9t2 + 25t+ 3 meters.
(a) What is the average velocity of the tomato during the first 2 seconds? Give units.
(b) Find (exactly) the instantaneous velocity of the tomato at t = 2. Give units.
(c) What is the acceleration at t = 2?
(d) How high does the tomato go?
(e) How long is the tomato in the air?
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A ray of light passes from air into water. The incident angle is 30o. Find the index of refraction of water if the angle of refraction is 22o
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