Ottawa PHY 1321 – In state-of-the-art vacuum systems

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Ottawa PHY 1321 – In state-of-the-art vacuum systems

Microsoft Word – ASSIGNMENT 2 Fall2016 PHY1321 no solution.docxa) In state-of-the-art vacuum systems, pressures as low as 10–9 Pa are being attained. Calculate the number of molecules in a 1.00-m3 vessel at this pressure if the temperature is 27.0°C. b) A copper wire and a lead wire are joined together, end to end. The compound wire has an effective coefficient of linear expansion of 20.0 ? 10–6 (°C)–1. What fraction of the length of the compound wire is copper?