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Unformatted text preview: Physics 4A FINAL EXAM Chapters 1 - 14 Fall 2004 1 Name: Posting Code ____ ____ ____ (only if you want your grade posted on the web.) Solve the following problems in the space provided. Use the back of the page if needed. Each problem is worth 10 points. You must show your work in a logical fashion starting with the correctly applied physical principles shown on the last page. Your score will be maximized if your work is easy to follow because partial credit will be awarded. 1. In 1940, Emanuel Zacchini set the record for distance by a human cannonball at 53.0m. His initial speed was 24.0m/s and he was launched at 30.0 above horizontal. Find (a)the time he spent in the air and (b)his maximum height above the ground. 2. Looking at the apples in the grocery store, the following questions enter your (physics obsessed) mind: (a)Which has a larger mass, an apple or a watermelon? (b)Which feels a larger gravitational force when dropped? (c)Which accelerates toward Earth at a higher rate? gravitational force when dropped?...
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- Fall '09