There is no obvious evidence for large-scale structure greater than about
A) 200 kpc. B) 600 kpc. C) 200 Mpc. D) 600 Mpc. E) 2000 Mpc.
C
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What are two important properties that determine the pressure drop of a fluid passing through a compact heat exchanger?
What will be an ideal response?
Which of the following is not a physical property of pure aluminum?
(a) Low density (b) High specific yield strength (c) Good ductility at low temperatures (d) Oxidation resistant in air
Suppose you put two protons near each other. Because of the electromagnetic force, what will the two protons do?
A) vollide B) remain stationary C) attract each other D) repel each other E) join together to form a nucleus
Polarized light is to have its polarization plane rotated by 90°. In which of the following cases does the final beam have the greatest intensity? a. 3 polarizing filters, each rotate beam by 30°
b. 2 polarizing filters, both rotate beam by 45°. c. 1 polarizing filter, rotating beam by 90°. d. None of the above, polarized light can't be rotated.