hw01 - alexander (jra2623) homework 01 Turner (92510) 1...

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Unformatted text preview: alexander (jra2623) homework 01 Turner (92510) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points The mass of the planet Saturn is about 5 . 64 10 26 kg and its radius 6 10 7 m. Calculate its density. Correct answer: 623 . 357 kg / m 3 . Explanation: Let : M = 5 . 64 10 26 kg and R = 6 10 7 m . Assuming Saturn to be a sphere (neglecting the rings), V = 4 3 R 3 , so the density of Saturn is = M V = M 4 3 R 3 = 3 (5 . 64 10 26 kg) 4 (6 10 7 m) 3 = 623 . 357 kg / m 3 . 002 (part 1 of 4) 10.0 points It is given that r and s are distances with unit [L], t is a time with unit [T] and is an angle in radians. Find the dimensions for the quantity c in the expression s = c t . 1. [ c ]=[T] 2. [ c ]=[L] 3. [ c ]=[L 2 ] 4. [ c ]=[L] [T] 5. [ c ]=[L] [T 2 ] 6. [ c ]=[T]/[L] 7. [ c ]=1/[T] 8. [ c ]=[L]/[T] correct 9. [ c ]=1/[L] 10. [ c ]=[L]/[T...
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This note was uploaded on 10/20/2011 for the course PHY 302K taught by Professor Kaplunovsky during the Summer '08 term at University of Texas at Austin.

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hw01 - alexander (jra2623) homework 01 Turner (92510) 1...

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