EBK PHYSICAL UNIVERSE
15th Edition
ISBN: 9780100255036
Author: KRAUSKOPF
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 14, Problem 14MC
The chief source of atmospheric heat is
- a. incoming solar
radiation - b. infrared radiation from the earth itself
- c. ultraviolet radiation absorbed by ozone
- d. ultraviolet radiation absorbed by clouds
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
1. A sphere of surface area 100 m and temperature 500 K radiates 0.2 MW. Calculate:
a. The emissivity of the surface.
b. The peak wavelength of radiation emitted.
C. The intensity at a distance of 100m from the centre.
d. The energy absorbed per second by a 2m disc with albedo 0.6 placed with it's plane
perpendicular to the direction of the radiation.
e. The temperature of the disc when it reaches equilibrium (emissivity of the disc = 1).
P= eAoT
A = 0.00289/T
G- 5.67 x 10* Wm°K*
Page 1 1 1
Q +
The temperature of the layer of the Sun that is visible to the human eye is approximately 5,800 K. Use Stefan's Law to estimate radiant flux of the Sun, which is the number of Watts of radiant power leaving each square meter of the Sun's surface.
pick a choice
a.
3.3 x 10^-4 Watts
b.
1.9 Watts
c.
6.4 x 10^7 Watts
d.
6.4 x 10^11 Watts
3. The solar constant (Gsc) measured by a scientist is reported as 1385 W/m2. Assume the
total hemispherical emissivity is 0.90 on the sun's surface.
temperature (in absolute temperature) on sun by using the following information:
Estimate the surface
Diameter of sun = 1.39 x 10° km
Diameter of earth = 1.28 x 10 km
Thickness of atmosphere on earth=40 km
%3!
Average distance between sun and earth = 1.495 x 108 km
Suggested reading materials: The chapters regarding "Fundamentals of Thermal Radiation"
and "Radiation Exchange between Black Surfaces" in any Heat Transfer textbook.
Chapter 14 Solutions
EBK PHYSICAL UNIVERSE
Ch. 14 - Arrange the following gases in the order of their...Ch. 14 - Much of Tibet lies in altitudes above 5.5 km...Ch. 14 - Prob. 3MCCh. 14 - Temperatures in the stratosphere increase with...Ch. 14 - The ozone in the stratosphere a. reflects radio...Ch. 14 - The breakdown of the ozone layer is promoted by...Ch. 14 - Saturated air has a relative humidity of a. 0 b. 1...Ch. 14 - The higher the temperature of a volume of air, the...Ch. 14 - When saturated air is cooled, a. it becomes able...Ch. 14 - Clouds consist of a. water droplets at all...
Ch. 14 - Prob. 11MCCh. 14 - (a) The three basic cloud types are cirrus,...Ch. 14 - Insolation is a. the insulating effect of the...Ch. 14 - The chief source of atmospheric heat is a....Ch. 14 - Prob. 15MCCh. 14 - The seasons occur as a result of a. variations in...Ch. 14 - Because of the coriolis effect, a wind in the...Ch. 14 - Prob. 18MCCh. 14 - Prob. 19MCCh. 14 - Prob. 20MCCh. 14 - The middle latitudes usually experience winds from...Ch. 14 - The generally easterly winds that blow on both...Ch. 14 - Prob. 23MCCh. 14 - The trade-wind belts are regions of generally a....Ch. 14 - A cyclone is a weather system centered about a a....Ch. 14 - Prob. 26MCCh. 14 - Unstable weather is associated with a. cyclones b....Ch. 14 - Tornados a. are narrow cyclonic storms b. are...Ch. 14 - The chief reason the equatorial regions are warmer...Ch. 14 - The greatest seasonal variations in temperature...Ch. 14 - Prob. 31MCCh. 14 - Ice ages a. cover the entire earth with a sheet of...Ch. 14 - The approximate percentage of the earths surface...Ch. 14 - Compared with the average height of the continents...Ch. 14 - The deepest known point of the oceans is found in...Ch. 14 - The Hawaiian Islands are a. part of a sunken...Ch. 14 - Tsunamis are caused by a. monsoons b. typhoons c....Ch. 14 - Prob. 38MCCh. 14 - Prob. 39MCCh. 14 - Prob. 40MCCh. 14 - What causes ionization to occur in the upper...Ch. 14 - Suppose you are climbing in an airplane that has...Ch. 14 - The tropopause, stratopause, and mesopause are...Ch. 14 - What would happen if ozone were to disappear from...Ch. 14 - Why are chlorofluorocarbon (CFC) gases, which are...Ch. 14 - What does it mean to say that a certain volume of...Ch. 14 - Prob. 7ECh. 14 - Why does the air in a heated room tend to be dry?Ch. 14 - The air in a closed container is saturated with...Ch. 14 - (a) Why does dew form on the ground during clear,...Ch. 14 - What does Fig. 14-6 tell us about the relative...Ch. 14 - What do high-altitude clouds consist of?...Ch. 14 - What initiates the fall of rain from a cloud? The...Ch. 14 - (a) The three basic cloud types are cirrus,...Ch. 14 - What is insolation? How does it affect the...Ch. 14 - (a) On a clear day, solar radiation is most...Ch. 14 - What is the greenhouse effect and how is it...Ch. 14 - Compare the ways in which the troposphere and the...Ch. 14 - If the earths atmosphere were to disappear, what...Ch. 14 - Why does the average air temperature decrease...Ch. 14 - What are the two mechanisms by which energy of...Ch. 14 - Account for the abrupt changes in temperature...Ch. 14 - In the northern hemisphere, the longest day is in...Ch. 14 - If the earths axis were tilted more than its...Ch. 14 - The Tropic of Cancer is the most northerly...Ch. 14 - (a) At what times of year are the periods of...Ch. 14 - What is a solstice?Ch. 14 - Prob. 28ECh. 14 - Distinguish between an isobar and a millibar.Ch. 14 - A wind in the northern hemisphere starts to blow...Ch. 14 - Prob. 31ECh. 14 - Where in the atmosphere do the jet streams occur?...Ch. 14 - Prob. 33ECh. 14 - Prob. 34ECh. 14 - Prob. 35ECh. 14 - Prob. 36ECh. 14 - How does the weather associated with a cyclone...Ch. 14 - Prob. 38ECh. 14 - Prob. 39ECh. 14 - Prob. 40ECh. 14 - Prob. 41ECh. 14 - Prob. 42ECh. 14 - Prob. 43ECh. 14 - Prob. 44ECh. 14 - Prob. 45ECh. 14 - Prob. 46ECh. 14 - Prob. 47ECh. 14 - Prob. 48ECh. 14 - Prob. 49ECh. 14 - Prob. 50ECh. 14 - Prob. 51ECh. 14 - Prob. 52ECh. 14 - Prob. 53ECh. 14 - Prob. 54ECh. 14 - Prob. 55ECh. 14 - Prob. 56ECh. 14 - In what two ways do the oceans influence climates...Ch. 14 - England and Labrador are at about the same...Ch. 14 - The California Current along the California coast...Ch. 14 - Prob. 60ECh. 14 - Prob. 61E
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- (a) Calculate the power per square meter reaching Earth's upper atmosphere from the Sun. (Take the power output of the Sun to be 4.001026 W.) (b) Part of this is absorbed and reflected by the atmosphere, so that a maximum of 1.30 kW/m2 reaches Earth's surface. Calculate the area in km 2 of solar energy collectors needed to replace an electric power plant that generates 750 MW if the collectors convert an average of 2.00% of the maximum power into electricity. (This small conversion efficiency is due to the devices themselves, and the fact that the sun is directly overhead only briefly.) With the same assumptions, what area would be needed to meet the United States' energy needs (1.051020J) ? Australia's energy needs (5.41018J) ? China's energy needs (6.31019J) ? (These energy consumption values are from 2006.)arrow_forward. On a winter day, the air temperature is — 15°C, and the humidity is 0,001 kg/m3. (a) What is the relative humidity? (b) When this air is brought inside a building, it is heated to 20°C. If the humidity isn't changed, what is the relative humidity inside the building?arrow_forwardAs air rises in the atmosphere, its temperature drops, even if no heat flows out of it. (a) Based on what you learned in Sections 4.4 and 5.3, explain why this is so. (b) Cumulus clouds form when rising air is cooled to the point where water droplets form because of condensation. Why are these clouds usually much higher above the ground in dry climates than in wet ones?arrow_forward
- In cold weather, you can sometimes "see" your breath. What you are seeing is a mist of small water droplets, the same as in clouds and fog. Suppose air leaves your mouth with temperature 35°C and humidity 0.035 kg/m3 and mixes with an equal amount of air at 5°C. and humidity 0.005 kg/m3 What is the relative humidity of the mixed air if its temperature and humidity equal the averages of those of the two original air masses? Represent what happens by plotting three points in a graph like Figure 5.34.arrow_forwardIdentify whether the given situations are examples of conduction, convection or radiation. a. Solar ultraviolet radiation, precisely the process that determines the Earth's temperature. b. Ironing of clothes c. When you walk barefoot on the hot street, and it burns your toes. d. The heat transferred by hand or hair dryerarrow_forwardWhich of the following best describes the definition of radiation as a form of heat transfer? Something that will turn you into a superhero. Dangerous radioactive material. A type of heat transfer that travels through alpha particles. A type of heat transfer that travels through electromagnetic waves, especially infrared. A type of heat transfer that involves the rising of hot material, and the sinking of cold material.arrow_forward
- Consider a simple climate model in which the Earth's atmosphere is represented as a single layer that is transparent to solar radiation but has an absorptivity of 0.8 in the infrared. The Earth's overall albedo is 0.3. a) Draw a diagram to illustrate the contributions to the radiation budget above the atmosphere and directly above the surface. b) Calculate the temperature of the ground in this model. c) Calculate the temperature of the atmosphere in this model. d) An increase in carbon dioxide causes the infrared absorptivity of the atmosphere to increase by 2.6 %. Calculate the resulting change in surface temperature.arrow_forwardC 6. For solar collectors, what combination of surface characteristics is required? b. High absorptivity and high reflectivity High absorptivity and high emissivity High emissivity and low absorptivity d. High absorptivity and low emissivity c.arrow_forwardA meteorite enters the Earth's atmosphere at 10 times the speed of sound. If all of the kinetic energy of the meteorite goes into heating up the meteorite, approximately how hot would it get? A. About 300 degrees C. B. About 6000 degrees C C. About 30,000 degrees C D. About 100,000 degrees Carrow_forward
- Which of the following best explains the condition of enhanced greenhouse effect?A. 81% of the radiation penetrating Earth’s atmosphere is of shorter wavelengths.B. UV-A and UV-B radiation exceeds 81% of the 1950 benchmark.C. infrared energy return to the earth is greater than 81%.D. re-radiation to outer space exceeds 81%.Reset SelectionMark for Review What’s This?arrow_forward20. Which of the following best describe radiation? A. Hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks B. When heat transfers from objects that are touching C. When heat is transferred from objects like rays of light or electromagnetically D. When heat transfers through the heater or AC in your housearrow_forwardWhich property of the Earth's atmosphere causes the greenhouse effect? The Earth's atmosphere allows radio waves to pass through, but it absorbs some ultraviolet radiation. The Earth's atmosphere allows radio waves to pass through, but it absorbs some infrared radiation. The Earth's atmosphere allows visible light to pass through, but it absorbs some infrared radiation. The Earth's atmosphere allows visible light to pass through, but it absorbs some ultraviolet radiation.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeHorizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Heat Transfer: Crash Course Engineering #14; Author: CrashCourse;https://www.youtube.com/watch?v=YK7G6l_K6sA;License: Standard YouTube License, CC-BY