How would each of the bar charts in picture below (in part A) be different IF EARTH WERE NOT PART OF THE SYSTEM? I understand the bar charts below - I need to know how they would be different IF EARTH WERE NOT PART OF THE SYSTEM. Thanks
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How would each of the bar charts in picture below (in part A) be different IF EARTH WERE NOT PART OF THE SYSTEM?
I understand the bar charts below - I need to know how they would be different IF EARTH WERE NOT PART OF THE SYSTEM.
Thanks
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- Parallax from Jupiter. Suppose you could observe stellar parallax from the orbit of Jupiter. How would it differ from the stellar parallax we observe from Earth? Would it be easier or more difficult to measure stellar distances? Explain.3 4 Suppose that someone in the Andromeda galaxy had a super-telescope through which they were looking at Earth right now. They would see Earth A B C D B As it was about 2 ½ million years ago C As it was about 100,000 years ago Which of the following statements about stellar parallax is true? As it will be about 2 ½ million years from now A We observe all stars to exhibit at least a slight amount of parallax. E As it is right now Stellar parallax was first observed by ancient Greek astronomers. The amount of parallax we see depends on how fast a star is moving relative to us. D It takes at least 10 years of observation to measure a star's parallax. The closer a star is to us, the more parallax it exhibits.Solution from part A: E=-KE = PE/2 Solution from part B: =3/2kt a. (NOTE: Treat the cloud as two equal masses interacting gravitationally across a distance equal to the radius of the cloud.) Use your result from part a to write down the condition for gravitational collapse in terms of the kinetic and potential energies (NOTE: This condition is an INEQUALITY) b. Use your result from part b in order to replace the kinetic energy with its temperature equivalent in your expression for the collapse condition. c. Solve the expression in ii above for the mass.