According to the HST data, very distant (and early) galaxies tend to be
A) smaller, bluer, and more irregular than modern ones.
B) redder, due to the recession of the universe.
C) larger and bluer that modern galaxies.
D) nothing but quasars.
E) very well formed into clusters of nothing but spirals.
A
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An old red star moving along a random orbit around the bulge is a
A. Pop I star. B. Pop II star. C. Pop III star. D. Pop V star.
The amount of energy converted to light by an incandescent light bulb is about
A) 10% and the amount converted to heat about 90% B) 90% and the amount converted to heat about 10%. C) either of these depending on the brand.
Name three differences between terrestrial and jovian planets
What will be an ideal response?
The neutrino is
a. a little neutron. b. another name for a positron. c. the particle detected in carbon dating. d. a particle proposed to account for "missing" energy and momentum in beta decay.