# HW1-1.doc - Homework 1-1 Name 1 How many significant...

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Homework 1-1 ______________________________ Name . 1. How many significant figures are in each of the following? 3.0 _____ 0.079 _____ 1.329 × 10 2 _____ 2. What is the volume of a cylinder with the dimensions listed below? Radius = 0.57 cm Height = 1.73 cm Give your answer with proper accounting of significant figures. (Use V = πR 2 H ) ____________ 3. Simplify the following: 2 kg m m s s 3 8 4 PHY 121 HW 1-1 Page 1 of 3

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4. Convert 1200 feet to miles. (There are 5280 feet in a mile.) 5. Convert 50 km/hr to m/s. 6. The correctness of a measurement is the same as _____ A. the accuracy of the measurement. B. the precision of the measurement. C. Neither A nor B D. Both A and B 7. Four different functional dependencies are shown in the graphs below. 1 . 2 . 3 . 4 . Which statement below is true? _____ A. Case 1 shows decreasing slope. B. Case 2 shows direct dependence. C. Case 3 shows a constant slope. D. Case 4 shows a decreasing slope. PHY 121 HW 1-1 Page 2 of 3
8. Five students measure the diameter of a wooden cylinder. Each student uses a metal ruler from a
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• Fall '11
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