21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 2, Problem 13QP
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2. Show that the divergence of the geostrophic wind is – v,(cot $)/a if the
variations in fwith latitude are accounted for (i.e., use the full definition of
the Coriolis parameter f = 2.0 sin p). To derive this relationship, recall that
on a spherical planet, the distance north is y = aø, where ø is latitude (in
radians) and a is the radius of Earth (6,370,000 m). Thus, a derivative in y
can be expressed as a derivative in latitude o via the following relationship:
a 1 a
ду
а дф
Which properties of a planet change its radiative balance?
Select one:
a. Precipitation and absorption of thermal radiation
b. Temperature and precipitation
c. Albedo and precipitation
d. Albedo and absorption of thermal radiation
Give two reasons why it is warmer in summer than in winter. Explain how these twoeffects cause Earth’s seasons.
Chapter 2 Solutions
21st Century Astronomy
Ch. 2.1 - Prob. 2.1ACYUCh. 2.1 - Prob. 2.1BCYUCh. 2.2 - Prob. 2.2CYUCh. 2.3 - Prob. 2.3CYUCh. 2.4 - Prob. 2.4CYUCh. 2.5 - Prob. 2.5CYUCh. 2 - Prob. 1QPCh. 2 - Prob. 2QPCh. 2 - Prob. 3QPCh. 2 - Prob. 4QP
Ch. 2 - Prob. 5QPCh. 2 - Prob. 6QPCh. 2 - Prob. 7QPCh. 2 - Prob. 8QPCh. 2 - Prob. 9QPCh. 2 - Prob. 10QPCh. 2 - Prob. 11QPCh. 2 - Prob. 12QPCh. 2 - Prob. 13QPCh. 2 - Prob. 14QPCh. 2 - Prob. 15QPCh. 2 - Prob. 16QPCh. 2 - Prob. 17QPCh. 2 - Prob. 18QPCh. 2 - Prob. 19QPCh. 2 - Prob. 20QPCh. 2 - Prob. 21QPCh. 2 - Prob. 22QPCh. 2 - Prob. 23QPCh. 2 - Prob. 24QPCh. 2 - Prob. 25QPCh. 2 - Prob. 26QPCh. 2 - Prob. 27QPCh. 2 - Prob. 28QPCh. 2 - Prob. 29QPCh. 2 - Prob. 30QPCh. 2 - Prob. 31QPCh. 2 - Prob. 33QPCh. 2 - Prob. 34QPCh. 2 - Prob. 35QPCh. 2 - Prob. 36QPCh. 2 - Prob. 37QPCh. 2 - Prob. 38QPCh. 2 - Prob. 39QPCh. 2 - Prob. 40QPCh. 2 - Prob. 41QPCh. 2 - Prob. 42QPCh. 2 - Prob. 43QPCh. 2 - Prob. 44QPCh. 2 - Prob. 45QP
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- You are lost at Sea – congratulations! Notice, however, that the Sun rises to an altitude of 40° in the South at noon. For some reason your watch is set to UT and reads 18:00. Oh, and it’s the fall equinox… convenient! Your latitude is… a. 0° b. 50° N c. 40° N d. 40°S e. 50°Sarrow_forward6 Jupiter's polar temperatures are similar to its equatorial temperatures mainly because of two reasons. What are these reasons? A Because Jupiter has no appreciable axis tilt and because Jupiter has a warm interior. Because Jupiter is fairly round, has no appreciable axis tilt, and has a warm interior. C Because Jupiter is fairly round and because Jupiter has a warm interior. (D) None of the mentioned choices is correct. E Because Jupiter has no appreciable axis tilt and because Jupiter is fairly round in shape. Barrow_forwardBecause of the lack of a temperature difference between the equator and poles of Jupiter, the a. cyclonic circulations on Earth are duplicated on Jupiter. b. high- and low-pressure regions are drawn into bands by the planet’s rapid rotation. c. belt-zone circulation is only a temporary phenomenon. d. belt-zone circulation is exceptionally stable. e. belt zone circulation is an illusion produced by the interaction of sunlight and chemicals in the Jovian atmosphere.arrow_forward
- 1. Calculate the zenith angle at solar noon at a latitude of 40° N on January 19.arrow_forwardThat the moon has no magnetic field implies that a. the moon is spinning too slowly to produce a magnetic field. b. the interior of the moon is too hot to produce a magnetic field. c. the crust of the moon is so thick that the magnetic field can not get out of the interior. d. the moon’s core contains little if any molten iron. e. the moon is moving further from Earth.arrow_forwardWhen tidal bulges are NOT in a direct Earth-moon line but slightly ahead of the moon, a. Earth’s gravity weakens. b. their gravitational field pulls the moon forward in its orbit, causing it to recede from Earth. c. their gravitational field pulls the moon back in its orbit, causing the moon to fall toward Earth. d. Earth’s gravity strengthens, causing the moon to orbit faster. e. the tidal bulges have no effect on the moon.arrow_forward
- What are the main factors that determine seasonal temperature variations? Draw your answer.arrow_forward4 Determine the albedo flux for an orbit around Earth in Watts/m2, given an altitude of 1,186 kmarrow_forwardThe Earth's surface and plants cannot reflect the Sundays, only cloud systems do that..true or falsearrow_forward
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