Which system is the primary system of units
used in the United States today?
a)The System International
b)The British system
c)The metric system
d)The mks system
b
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Answer the following statement true (T) or false (F)
Why is Saturn almost as large in radius as Jupiter despite its smaller mass?
A) Jupiter's greater mass compresses it more, thus increasing its density. B) Saturn's rings make the planet look bigger. C) Saturn is farther from the Sun, thus cooler, and therefore less compact. D) Saturn has a larger proportion of hydrogen and helium than Jupiter, and is therefore less dense. E) Jupiter's strong magnetic field constrains its size.
How long does it take an M class star to reach the main sequence, compared to a solar type star?
A) a tenth as long B) about the same, 30 million years C) about twice as long D) about twenty times longer E) longer than the age of the Galaxy
______ is a nongraphical display browser.
A. Chrome B. Edge C. Safari D. Lynx