Answered: The towers of a 60 meter parabolic…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. The towers of a 60 meter parabolic suspension bridge are 12m high and the lowest point of the cable is 3m above the roadway. Find the vertical distance from the roadway. Find the vertical distance from the roadways to the cable at 15m from the center. a. 4 m b. 5 m c. 6 m d. 7 m 2. If a boy with a single shot, shot a bird flying horizontally at a distance in from the ground with the speed of 12 meters per minute. The boy missed the bird and the bullet of the sling went up to the maximum height h from the level of the bird. When the bullet descended to the range of the projectile, it hit the bird. Find the horizontal component speed of the bullet. a. 15.28 m/min b. 14.484 m/min c. 12.468 m/min d. 16.524 m/min 3. A reflecting telescope has a parabolic mirror for which the distance from the vertex to the focus is 30 ft. If the distance across the top of the mirror is 64 in., how deep is the mirror at the center? a. 32/45 in b. 30/43 in c. 32/47 in d. 35/46 in

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