On a cosmic calendar, in which the history of the universe is compressed into one year, how long is the average human life span?
A) 0.2 millisecond
B) 0.2 second
C) 2 seconds
D) 2 minutes
E) 2 hours
B
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Creation science claims that scientific evidence can and does prove God made the universe. Select the statement which does not identify a legitimate objection to this claim. (Recall the hallmarks of science.)
A) If "God did it" is the explanation for everything, then final exams in astronomy would be very simple (all answers would be the same!), and science experiments would be very easy to explain, but we wouldn't learn much about the natural world. B) Science cannot prove (or disprove) the existence of a superpowerful, supernatural deity. C) The statement that "God did it" cannot be falsified by science, and therefore it is not a statement that science can test. D) Scientists are not allowed to believe in God.
The Chandra X-ray telescope must use:
A) a lens of fluorite. B) grazing incidence optics to focus the short wavelengths. C) a Newtonian reflecting design to avoid chromatic aberration. D) X-ray film instead of CCDs for imaging. E) a Schmidt corrector plate to avoid spherical aberration.
A baseball is thrown and lands 120 m away. While the ball is in flight, assuming the effect of air friction is negligible, which of the following is true?
a. At maximum height the ball has its greatest kinetic energy. b. The horizontal component of the baseball's kinetic energy is constant. c. The vertical component of the baseball's kinetic energy is constant. d. The mechanical energy of the baseball is greater when nearer to the ground. e. No answer above is correct.
Massive-star supernovae and white-dwarf supernovae work equally well as standard candles for measuring cosmic distances
Indicate whether the statement is true or false