Which of the following correctly describes what we mean by a great circle on the surface of the Earth?
A) any circle whose center is at the center of the Earth
B) any circle of latitude
C) any circle larger than 10,000 km in diameter
D) a circle of longitude
A) any circle whose center is at the center of the Earth
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Mars has a sufficient mass and a low enough temperature that water molecules could exist in its atmosphere as vapor. One reason Mars's atmosphere does not contain a significant amount of water vapor is that
a. Mars formed in a part of the solar nebula that lacked oxygen. b. Mars formed in a part of the solar nebula that lacked hydrogen. c. all of the water vapor was released in the impact that formed Deimos. d. ultraviolet radiation breaks the water molecule into less massive particles that can escape. e. the water molecule combines readily with chlorine to form hydrochloric acid.
Shell Radius: Consider the Bohr model for the hydrogen atom in its second excited state.(a) Determine the binding energy (eV) of the electron.(b) What is the radius of the electron orbit, given that r1 = 0.0529 nm?(c) How far is it from the next higher excited orbit?
What will be an ideal response?
Pluto is different from the other outer planets in all of the following ways except which one?
A) Its orbit is not very close to being circular. B) It has only one moon. C) Its surface temperature is very cold. D) It is made mostly of ices. E) It doesn't have rings.
Uranus and ________ are very similar in size, mass, and color
Fill in the blank(s) with correct word