What is the quark composition of a ?°?
A)
uud
B)
uus
C)
uds
D)
uss
E)
udd
C
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The slowing of clocks in strongly curved space time is known as
a. gravitational radiation. b. time dilation. c. gravitational curvature. d. gravitational red shift. e. hyperspace drag.
In contrast to Ursa Major, the Big Dipper is not a(n) ___ but is instead a(n) ______
a. star; constellation. b. asterism; constellation. c. a constellation; asterism. d. Wrong! Both are asterisms. e. Wrong! Both are official constellations.
Observations indicate that the Moon has water ice in craters near the poles. Where do scientists suspect this water came from?
A) ice brought by comet impacts long ago B) ice supplied to the Moon by impacts that occurred within the past century or so C) the ice formed from the condensation of water released by outgassing on the Moon D) The Moon has significant amounts of water bonded in its crust, so some of this water fills the polar craters.
High-mass stars evolve differently than medium-mass stars because they are able to fuse _______________
Fill in the blank(s) with correct word