# Homework unit 1.docx - Homework chapter 1&2 Part 8...

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Homework chapter 1&2 Part 8 scientific notation 1. 123 450 000 = 1.2345 × 10 8 2. 0. 312 508 = 3.12508 × 10 1 3. 0. 000 314 67 = 3.1467 × 10 4 4. 173 = 1.73 × 10 2 5. 325 000 = 3.25 × 10 5 6. 0. 012 24 = 1.24 × 10 2 7. 8.42 × 10 9 = 842 000 000 0 8. 1.226 × 10 2 = 122.6 9. 3.674 × 10 4 = 0.000 367 4 10. 1.344 × 10 1 = 0.134 4 Part 9 Geometry/trigonometry 1. Isosceles triangle have 2 equal angles. 2. 180-120=60 3. 6 2 + 8 2 =100 =10in 4. 40 in 5. 35 ¿ 2 6. 63.61 ¿ 2 7. 14.96 gal 8. 3.92 gal 9. 314.16gal 10. 3.6 11. 5 12. 5 13. 0.9 14. 0.7 15. 0.7 Part 10 Charts 1. 600 2. 2000 rpm 3. 240 BMEP 4. 50 lb 5. 65 lb 6. 26 lb 7. 178 lb 8. 123 lb 9. 41 lb 10. 80 lb Review Exam 1. D 2. A 3. C 4. C
5. D 6. A 7. C 8. D (42/14=3 420/3=140) 9. D 10. C (125Hp*0.65= 81) Chapter 2 Study Questions 1. Metric system 2. Knots 3. Gravity 4. Weight 5. Mass 6. A unit of mass having a value of approximately 32.175 lb under standard atmospheric condition is a slug 7. Density is mass per unit volume 8. Specific gravity is the ratio of a density of substance to the density of water 9. Hydrometer 10. Speed 11. Velocity 12. Inertia 13. Acceleration 14. The highest velocity that is reached by a falling object is terminal velocity 15. Friction 16. Thrust 17. Linear and angular 18. A weight attached to the end of a chord and and twirled around will produce a force tending to cause the weight to fly outward is called the centrifugal force. An equal and opposite force pulling the weight inward is called the centripetal force.