A planet is discovered at a distance of 1 AU from its parent star with a period of 1 year. How does the star's mass compare to our Sun's?
A. The star's mass is around 4 times smaller than the Sun's.
B. The star's mass is around 2 times smaller than the Sun's.
C. The star's mass is around 2 times larger than the Sun's.
D. The star's mass is around 4 times larger than the Sun's.
E. The star has the same mass as the Sun.
Answer: E
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The most efficient engine possible is the
A) Joule cycle. B) Wright cycle. C) Kelvin cycle. D) Carnot cycle. E) Otto cycle.
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a. 53 eV b. 31 eV c. 92 eV d. 122 eV e. 61 eV
The first observations of objects in the solar system that orbited neither the Sun nor Earth were made by ____________________
Fill in the blank(s) with correct word