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Lookback Time and the Ages of Galaxies. Suppose you observe a distant galaxy with a lookback time of 10 billion years. What was the maximum possible age of that galaxy when the light we are now observing from it began its journey to Earth? Explain your reasoning. (Hint: Assume the galaxy was born less than a billion years after the Big Bang.)
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Cosmic Perspective Fundamentals
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- Solve the following problem and show your complete solutions. Explain your work for better understanding. And illustrate the FBDarrow_forwardRead the following questions carefully and answer the problems using GRESA. 1. Assuming that the field of view is flat, what is the resultant vector (yellow line) of an observer pointing his telescope starting at the Andromeda galaxy, then moving 62 units 27° S of W to Jupiter, then finally moving to Saturn 17 units 72° S of W. Express your magnitude to the nearest hundredths units, and the angle to the nearest hundredths °, following the standard cartesian plane coordinate system.arrow_forwardPlease organize your work very clearly, and circle your answers. thank youarrow_forward
- format in solving: 1. given 2. diagram (simple labeled sketch) 3. solution * formula (from formula sheet) * algebra * substitution * solve 4. therefore statement (full answer with correct sig figs)arrow_forwardSee the screenshot uploaded. Answer in a step-by-step format, add diagrams, and detailed side notes for a better understanding. For a more clear response please answer on paper Thank you!arrow_forwardWrite the detailed solution (Given, Unknown, Formula, Step-by-Step Solution). Box your final answer. Please make sure that your handwritten is readable. Thank you.arrow_forward
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