The main difference between an A2V and F2V star is their ________
Fill in the blank(s) with correct word
temperature (or luminosity)
Physics & Space Science
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Which of the following is not a planar defect?
(a) Edge dislocation (b) Stacking fault (c) Twin (d) Grain boundary
Physics & Space Science
When did there first start to be four separate forces?
A: 10^43 seconds B: 10^34 seconds C: 10^12 seconds D: 1 second E: 100 seconds
Physics & Space Science
Where would you be if the Sun sets for six continuous months, beginning about September 23rd?
A) North Pole B) Arctic Circle C) Equator D) Antarctic Circle E) South Pole
Physics & Space Science
Which of the following are characteristics of laser light? (There may be more than one correct choice.)
A) It is coherent. B) It contains a full spectrum of wavelengths. C) It is produced by an inverted population of atoms.
Physics & Space Science