Say that our Moon was Full on May 1, 2007. When was the next First Quarter phase after that Full Moon?
a) May 15
b) June 1
c) May 22
d) May 8
e) May 4
Ans: c) May 22
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The separation between Africa and the Arabian peninsula is a(n) ____________________ valley
Fill in the blank(s) with correct word
During an eclipse of the Sun the high ocean tides on Earth are
A) extra high. B) extra low. C) not significantly different.
If a = 3.0 mm, b = 4.0 mm, Q1 = 60 nC, Q2 = 80 nC, and q = 24 nC in the figure, what is the magnitude of the electric force on q?
A. 2.7 N B. 1.9 N C. 2.3 N D. 1.5 N E. 0.52 N
At present, what is the primary way that astronomers carry out SETI programs (that is, search for extraterrestrial intelligence)?
A) by using radio telescopes to search for signals from extraterrestrial civilizations B) by analyzing the spectra of extra-solar planets in an attempt to detect oxygen C) by searching for planets around distant stars D) by using X-ray telescopes to search for signals from extraterrestrial civilizations E) by analyzing high-resolution images of nearby stars in search artificial structures