Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Chapter 10, Problem 28E
Estimate the amount of water there could be in a global (planet-wide) region of subsurface permafrost on Mars (do the calculations for two permafrost thicknesses, 1 and 10 km, and a concentration of ice in the permafrost of 10% by volume). Compare the two results you get with the amount of water in Earth’s oceans calculated in Example 10.1.
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Two chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI¯) is −2.00 × 10-21 C
and that of the sodium ions (Na+) is +2.00 x 10-21 C. (The effective charge is a way to account for the partial shielding due
to nearby water molecules.) Assume that all four ions are coplanar.
CT
Na+
Na+
30.0°
45.0%
с
сг
L.
where a = 0.300 nm, b = 0.710 nm, and c = 0.620 nm.
What is the direction of electric force on the chloride ion in the lower right-hand corner in the diagram? Enter the angle in degrees
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A pendulum has a 0.4-m-long cord and is given a tangential velocity of 0.2 m/s toward the
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Part A
Determine the equation which describes the angular motion.
Express your answer in terms of the variable t. Express coefficients in radians to three significant figures.
ΜΕ ΑΣΦ
vec
(t)=0.3 cos (4.95t) + 0.101 sin (4.95t)
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Part A
■Review
The uniform 150-lb stone (rectangular block) is being turned over on its side by pulling the
vertical cable slowly upward until the stone begins to tip.
(Figure 1)
If it then falls freely (T = 0) from an essentially balanced at-rest position, determine the speed at which the corner A strikes the pad at B. The stone does not slip at its corner C as it falls. Suppose that height of the stone is
L = 1.2 ft.
Express your answer to three significant figures and include the appropriate units.
?
ft
VA 10.76
S
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Chapter 10 Solutions
Astronomy
Ch. 10 - List several ways that Venus, Earth, and Mars are...Ch. 10 - Compare the current atmospheres of Earth, Venus,...Ch. 10 - How might Venus’ atmosphere have evolved to its...Ch. 10 - Describe the current atmosphere on Mars. What...Ch. 10 - Explain the runaway refrigerator effect and the...Ch. 10 - What evidence do we have that there was running...Ch. 10 - What evidence is there that Venus was volcanically...Ch. 10 - Why is Mars red?Ch. 10 - What is the composition of clouds on Mars?Ch. 10 - What is the composition of the polar caps on Mars?
Ch. 10 - Describe two anomalous features of the rotation of...Ch. 10 - How was the Mars Odyssey spacecraft able to detect...Ch. 10 - What are the advantages of using radar imaging...Ch. 10 - Venus and Earth are nearly the same size and...Ch. 10 - Why is there so much more carbon dioxide in the...Ch. 10 - If the Viking missions were such a rich source of...Ch. 10 - Compare Mars with Mercury and the Moon in terms of...Ch. 10 - Contrast the mountains on Mars and Venus with...Ch. 10 - We believe that all of the terrestrial planets had...Ch. 10 - Is it likely that life ever existed on either...Ch. 10 - Suppose that, decades from now, NASA is...Ch. 10 - We believe that Venus, Earth, and Mars all started...Ch. 10 - One source of information about Mars has been the...Ch. 10 - The runaway greenhouse effect and its inverse, the...Ch. 10 - In what way is the high surface temperature of...Ch. 10 - What is a dust devil? Would you expect to feel...Ch. 10 - Near the martian equator, temperatures at the same...Ch. 10 - Estimate the amount of water there could be in a...Ch. 10 - At its nearest, Venus comes within about 41...Ch. 10 - If you weigh 150 lbs. on the surface of Earth, how...Ch. 10 - Calculate the relative land area-that is, the...Ch. 10 - The closest approach distance between Mars and...
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