This bar graph is based on statistical study of results from the Kepler mission. Which of the following conclusions is supported by the graph?

A) At least about 15% of stars have a planet similar in size to Earth.
B) Most stars with an Earth-sized planet do not have any larger jovian planets orbiting far from their stars.
C) Most stars have five planets.
D) A star orbited by a super-Earth is likely also to be orbited by a mini-Neptune.


A) At least about 15% of stars have a planet similar in size to Earth.

Physics & Space Science

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Bulk Modulus: Which one of the following would be expected to have the smallest bulk modulus?

A. liquid mercury B. liquid water C. helium vapor D. solid iron E. solid uranium

Physics & Space Science

Young's Modulus: A bridge piling has a cross-sectional area of 1.250 m2 and supports a load of 1875 N. What is the stress on the column?

A. 1875 N B. 1875 N/m2 C. 1500 N/m2 D. 2344 N/m2

Physics & Space Science

To find the distance of nearby stars, we use their parallaxes obtained over ________-month intervals

A) one B) three C) six D) twelve E) twenty-four

Physics & Space Science

Approximately what core temperature is required before hydrogen fusion can begin in a star?

A) 10 million K B) 10,000 K C) 10 trillion K D) 10 billion K E) 1 billion K

Physics & Space Science