Why are visual binaries and eclipsing binaries

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Q1. Calculate the equilibrium number of vacancies per cubic meter for copper at 1273 k .the energy for vacancy formation is o.9 ev/atom; the atomic weight and density at 1273 k for copper are 63.5 g/mol and 8.40 g/cm^3,correspondingly.

Q2. 1. Why are visual binaries and eclipsing binaries relatively rare compared to spectroscopic binaries?

2. What goals did the U.S. have for the Korean War? Were these goals accomplished? Describe the varied negative effects the Korean War had on both the U.S. and Korea at the time of the war as well as over time.

Q3. Describe how it is possible to increase the contrast of mass density image. Can we obtain a mass density image of metal specimen? Can we obtain diffraction contrast in a polymer specimen?

Reference no: EM137438

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