EMA_4314_HW1_Solns

EMA_4314_HW1_Solns - EMA 4314 HW 1 Solutions 1. Answers...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: EMA 4314 HW 1 Solutions 1. Answers will vary a. Width of human hair b. Ant c. Fingernail d. Finger e. Height of child f. Olympic platform diving height g. Tall building h. Mount Everest 2. Answers will vary a. Grain of sand b. Teaspoon c. Quart of milk d. Box for shipping e. Swimming pool f. Large building g. Lake 3. PV = nRT = = (1 ) 8.20574 × 10 −2 3 ∗ ∗ ¡ (273.15 ) 1 = 22.414 3 . 1 dm 3 = 1 L; 22.414 L . 1 L = 0.264 gal; 5.92 gal 4. Answers will vary a. Plant seeds b. Coin c. Mouse d. Banana e. Cake f. Liter of water g. TV h. Football player i. Car 5. Answers will vary a. Tensile test b. Snail c. Small bug d. Walking e. Olympic sprinter f. Race car g. Mach 3 jet h. Light in vacuum 6. Answers will vary a. Laboratory vacuum b. Dollar on table surface c. Partially inflated bike tire d. Pressure of Earth’s atmosphere at sea level e. Core of Earth 7. a. 760 torr b. 760 mm of Hg c. 10332.27 mm of H 2 O ( 4 ̊ C) d. 101325 e. 14.696 psi 8. Answers will vary a. Frenkel pair recombination b. 1 cycle of 1 GHz processor c. 1 cycle of 1 MHz processor d. Phosphorescence e. Finger snapping f. Blink of eye g. Jump h. Make a joke i. Put on shoes j. Eat lunch k. Day l. Week m. Month 9. Assume you can count 1 number per second a. 11.6 days b. 31.7 years 10. K ̊ C ̊ F A 0 -273.15 -459.67 B 77 -196 -320 C 195 -78 -108 D 273 0 32 E 296 23 73 F 310 37 98.6 G 373 100 212 H 1265 (Iron) 1538 2800 I 3137 (Tungsten) 3410 6170 J 5778 5505 9941 11. a. 1.14×10-3 g/cm 3 Oxygen b. 1 g/cm 3 Water c. 7.78 g/cm 3 Iron 12. (12 ) × ( 28 . 35 ) 1 ¡¢ × 1 18 ¡ £ ¤ = 18.6 ¥¦ 13. Use sucrose (C 12 H 22 O 11 ); 342 g/mol; density = 1.587 g/cm 3 (1 ) × 14.79 3 1 × 1.587 ¡¢ £ × 1 342 ¤ ¥ = 6.86 10 −2 14. The human body is 60% water, so use this substance for calculation. The average human is approximately 70 kg. (ref. Black, “Biological Performance of Materials,” 4 th ed. (1 ℎ ) × 70 ¤ 1 ℎ × 1000 ¤ 1 ¤ × 1 18 ¤ = 3900 15. a. 6.7 billion people b. 6.7×10 9 humans / 6.022×10 23 humans/mol = 1.11×10-14 mol c. 4.69×10 11 kg (70 kg each) d. Mass of Earth = 6.0×10 24 kg; 4.69×10 11 kg / 6.0×10 24 kg = 7.82×10-14 16....
View Full Document

This note was uploaded on 11/16/2011 for the course EMA 4314 taught by Professor Phillpot during the Fall '10 term at University of Florida.

Page1 / 7

EMA_4314_HW1_Solns - EMA 4314 HW 1 Solutions 1. Answers...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online