Air temperature decreases with increasing altitude; this rate of cooling is called the
A) dry adiabatic lapse rate.
B) a moist adiabatic rate.
C) environmental lapse rate.
Answer: C
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A charge q1 is placed on the y-axis at y = 4.0 m and the resulting potential at the position (3.0 m, 4.0 m) is 3.0 V. The charge q1 is removed and a charge q2 is placed on the x-axis at x = 3.0 m and the resulting potential at the position (3.0 m, 4.0 m) is 4.0 V. If both charges are in place simultaneously, what is the potential at (3.0 m, 4.0 m)?
A. 1.0 V B. 3.5 V C. 5.0 V D. 7.0 V E. 12 V
Models of the Big Bang that include inflation predict that the overall geometry of the universe should be "flat" (in spacetime). This prediction
A) agrees with data found by studying the cosmic microwave background. B) has been verified by observing the paths of light coming from distant galaxies. C) has been shown to be incorrect by study of the expansion pattern of the universe. D) cannot be tested at this time.
What was the first geological period in Earth's history after the dinosaurs became extinct?
A) The Cretaceous Period B) The Carboniferous Period C) The Tertiary Period D) The Triassic Period
Is so-called "empty" space really empty?
A) Yes, because conservation of energy forbids the spontaneous creation of matter or radiation. B) Yes, because nothing exists other than particles and empty space. C) No, because of random quantum fluctuations. D) No, because neutrinos are always present at every point in the universe. E) No, because all space is filled with a physical substance known as "ether."