Homework0_solution - Round to final answer of 4.7 x 10-3 m...

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Homework “0” Significant Figures and Units Solve the following problems and write your final answers using the correct number of significant figures: 1. 4.736 * 2.14 = 10.1 2. 5.2 * 2.35 = 12. 3. 2.71 + 4.39 + 300.987 + 21.972 = 330.06 4. 394 / 10.236 = 38.5 5. 3.47 * 2. = 7. 6. 100 / 2.0 = 0.050 x 10 3 (assuming 100 has 3 significant figures) 7. 8.346 - 7.234 = 1.112 8. 3.1 x 10 3 / 2.755 = 1.1 x 10 3 9. 47.0 x 10 6 * 1.027 = 48.3 x 10 6 10. 5.76 x 10 -6 * 1.3 x 10 3 = 7.5 x 10 -3 11. What is the volume in m 3 of an object that measures 102 cm. long, 10.73 cm. wide, and is 1.7 inches thick? 1.02 m x 0.1073 m x 1.7 in. x (.0254) m/in. = .00473
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Unformatted text preview: Round to final answer of 4.7 x 10-3 m 3 The voltage across a resistance in an electrical circuit is given by Ohms Law (Voltage = Current * Resistance). Using this relationship, complete the following table. (As we will see shortly, voltage and current are signed quantities. For this exercise, only focus on the magnitude of the voltage or current.) Voltage Current Resistance 1.1 V 1.07 mA 1.0 k 1.07V 1.07 mA 1.00 k 20.0 V 1 A 0.02 k 15.0V 2.5 mA 6.0 k 16.7V 3.6 A 4.7 15mV 1.53 9.8 k 0.79 V 105A 7.5m 10.0 kV 10.0kA 1.00...
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