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in comparing the Young Red Giant star with the main sequence star from which it

ID: 233504 • Letter: I

Question

in comparing the Young Red Giant star with the main sequence star from which it evolved which of the following statements is not true?
A. the core of the main sequence Stars hotter.
B. the Red Giant star has a larger diameter
C. the Red Giant star has the coolest surface temperature

when we use HO to calculate the age of the universe we are making all of the following assumptions except the one what is the exception?
a. the universe is isotropic, that is it has the same properties in all directions
b. the Milky Way galaxy is the center of the universal expansion
c. the value of a Ho is indeed constant
d. the speed of the expansion has been constant Through Time

Explanation / Answer

1) In comparing the Young Red Giant star with the main sequence star from which it evolved which of the following statements is not true?

Answer - A. the core of the main sequence Stars hotter

2) when we use HO to calculate the age of the universe we are making all of the following assumptions except the one what is the exception?

Answer - d. the speed of the expansion has been constant Through Time