Rearrange Newton\'s form of Kepler\'s Third Law from lecture and the Extrasolar
ID: 1644161 • Letter: R
Question
Rearrange Newton's form of Kepler's Third Law from lecture and the Extrasolar Planets Lab to solve for the mass: p^2 = 4 pi^2 a^3/GM Now, pick one of the stars and determine the mass of the unseen object at the center of our galaxy. You'll need to use a ratio here, so compare to the known values of P, a, and M for the Earth and Sun. Express your answer in scientific notation and in English. What are the units on this object's mass? Try a second star to check your answer. UCLA astronomers have used the orbits of the stars to measure the mass of the unseen object and its maximum size. The large mass and small size imply an escape velocity larger than the speed of light - the unseen object is a super-massive black hole!Explanation / Answer
it only need calculation part you only need to apply relation between time period and mass of sun thus you can verify each of your values using
G=6.67*10^-11
M=mass of sun =1.989*10^30kg
value of orbital radii a and time period P is given by you.
also 2nd question is not complete...you can send me that question in comment section...
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