A typical neutron star is more massive than our Sun and about the size (radius) of
A) a small asteroid (10 km in diameter).
B) Earth.
C) the Moon.
D) Jupiter.
A
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Astronomers no longer build large observatories in populated areas in order to avoid _______________
Fill in the blank(s) with correct word
Which does NOT belong to the same family?
A) infrasonic waves B) ultrasonic waves C) radio waves D) shock waves E) longitudinal waves
Conversion of Units: Rover eats 0.50 pound of dry dog food per day. How many 5.0-kg sacks of dog food does his owner need to buy in a year? (1.0 kg weighs 2.2 lb)
A. 17 B. 25 C. 52 D. 80 E. 81
the greater average kinetic energy per molecule,
A. The quantity is greater for gas A. B. The quantity is greater for gas B. C. The quantity is the same for both gases. D. One does not know enough to compare the quantities.