The figure shows a distance versus time graph for an object



The velocity of the moving object is



a.

zero.



b.

constant.



c.

increasing.



d.

decreasing.



e.

not determinable.


b

Physics & Space Science

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If the absolute magnitude, M, of a supernova is x 19 and a galaxy is found that contains a supernova with an apparent magnitude, m, of 16 . What is the distance to the galaxy? Hint: dpc = 10(m - M + 5)/5 using a scientific calculator

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If the distance between Earth and a star is measured using parallax measurements, how far apart in time should the two measurements be made to make the parallax measurement as accurate as possible?

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A scientific experiment that showed a favorite model to be wrong should be disregarded

What will be an ideal response?

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