When a star has exhausted all of its hydrogen, it is said to have reached the zero-age main sequence (ZAMS)
Indicate whether the statement is true or false
False
Physics & Space Science
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The most abundant element in the universe
A) hydrogen. B) helium. C) lead. D) uranium.
Physics & Space Science
A standard exam page is 8.5 inches by 11 inches. An exam that is 2.0 mm thick has a volume of
a. 1.9 × 10^4 mm3. b. 4.7 × 10^4 mm3. c. 1.2 × 10^5 mm3. d. 3.1 × 10^5 mm3. e. 3.1 × 10^3 mm3.
Physics & Space Science
Which of the following is true of Jupiter's moon Europa?
A) It is rich in organic molecules and water. B) It appears to have a liquid-water ocean below its icy crust. C) It has methane in its atmosphere. D) It was brimming with life in its history.
Physics & Space Science
How many seconds in 5.24 days?
A) 3.77 × 103 s B) 4.98 × 107 s C) 4.53 × 105 s D) 2.26 × 105 s E) 7.55 × 103 s
Physics & Space Science