In words, 3.5 x 1011 is
(HINT: Write this number out before trying to answer the question.)
A) 350 million. B) 3.5 trillion. C) 350 billion. D) 35 billion. E) 35 million.
C
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Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2sin(?x)cos(3?t), where x is in m and t is in s. What is the distance (in m) between the first two antinodes?
a. 8 b. 2 c. 4 d. 1 e. 0.5
This graph shows the frequency of impacts on Earth by objects of various sizes. According to this graph, objects large enough to cause a mass extinction hit Earth
A) about once every 50 million years. B) about once every 1,000 years. C) about once in Earth's history. D) about once every 500 million years.
A muon formed high in Earth's atmosphere travels at a speed 0.960c for a distance (as we see it) of 4500 m before it decays. How far does the muon travel as measured in its frame?
a. 2520 m b. 16,100 m c. 4320 m d. 1260 m e. 4500 m
On of the greatest debates is the intellectual history of mankind was whether the geocentric or heliocentric cosmos was correct. Who was it proposed by?
a) Pyrhagoras b)thayles c)Aristarchus