The ESA's GAIA project will be able to measure parallax and stellar properties of about how many stars?
A) one million
B) ten thousand
C) one billion
D) one hundred billion
E) None; it has a different purpose.
C
You might also like to view...
The centroid of the L-shaped segment shown in the figure below is at coordinates (x, y) (in.):
(A) 2.0, 1.75
(B) 3.0, 1.50
(C) 2.0, 1.50
(D) 2.5, 1.25
A star is observed with a surface temperature of 3000 K and a luminosity of 105 times that of the Sun. Based on the H-R diagram shown above, what is the approximate radius of this star?
A) 10 solar radii B) 102 solar radii C) 103 solar radii D) The radius cannot be determined.
The weight of an object on the Moon is what fraction of the weight of the same object on Earth?
What will be an ideal response?
Which best expresses the value for the coefficient of volume expansion, ?, for given material as a function of its corresponding coefficient of linear expansion, ??
a. ? = ?3 b. ? = 3? c. ? = ?2 d. ? = 2?