COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135729458
Author: Bennett
Publisher: PEARSON
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Chapter 5, Problem 50EAP
To determine
To Explain: The way a microwave cooks food.
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Define emissivity and absorptivity. What is Kirchhoff’s law of radiation?
A planet has been discovered orbiting a K type main sequence star. A spectrum taken of this planet shows a blackbody shape to the spectrum that peaks at a wavelength of 8.67x10-5 cm.
a) Find the temperature of this planet. Hint: Always make sure your units match!!!!
b) Describe the prospects for life as we know it on this planet. Note that water remains in a liquid state between temperatures of 273 K and 373 K.
Tutorial
Star A has a temperature of 5,000 K and Star B has a temperature of 6,000 K. At what wavelengths (in nm) will each of these star's intensity be at its maximum?
If the temperatures of the stars increase, the wavelength of maximum intensity.
What is the temperature (in K) of a star that appears most intense at a wavelength of 829 nm?
Part 1 of 4
Wien's Law tells us how the temperature of a star determines the wavelength of maximum intensity or at what wavelength the star appears brightest.
2.90 x 106
TK
If the temperature is in kelvin (K) then A is in nanometers (nm).
Anm
^A =
AB =
=
Part 2 of 4
To determine the wavelengths of maximum intensity for the two stars:
2.90 x 106
2.90 x 106
K
nm
nm
Chapter 5 Solutions
COSMIC PERSPECTIVE
Ch. 5 - Prob. 1VSCCh. 5 - Prob. 2VSCCh. 5 - Prob. 3VSCCh. 5 - Prob. 4VSCCh. 5 - Prob. 5VSCCh. 5 - Prob. 1EAPCh. 5 - Prob. 2EAPCh. 5 - Why do we say that light is an...Ch. 5 - Prob. 4EAPCh. 5 - List the different forms of light in order from...
Ch. 5 - Prob. 6EAPCh. 5 - Prob. 7EAPCh. 5 - What is electrical charge? Will an electron and a...Ch. 5 - Describe the phase changes of water as you heat...Ch. 5 - Prob. 10EAPCh. 5 - Prob. 11EAPCh. 5 - Prob. 12EAPCh. 5 - Prob. 13EAPCh. 5 - Prob. 14EAPCh. 5 - Prob. 15EAPCh. 5 - Prob. 16EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 19EAPCh. 5 - Prob. 20EAPCh. 5 - Prob. 21EAPCh. 5 - Prob. 22EAPCh. 5 - Prob. 23EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 27EAPCh. 5 - Prob. 28EAPCh. 5 - Prob. 29EAPCh. 5 - Prob. 30EAPCh. 5 - Prob. 31EAPCh. 5 - Prob. 32EAPCh. 5 - Prob. 33EAPCh. 5 - Prob. 34EAPCh. 5 - Prob. 35EAPCh. 5 - Choose the best answer to each of the following....Ch. 5 - Prob. 39EAPCh. 5 - Prob. 40EAPCh. 5 - Prob. 41EAPCh. 5 - Prob. 42EAPCh. 5 - Prob. 43EAPCh. 5 - Atomic Terminology Practice II. What are the...Ch. 5 - Prob. 45EAPCh. 5 - Prob. 46EAPCh. 5 - Prob. 47EAPCh. 5 - Prob. 48EAPCh. 5 - Prob. 49EAPCh. 5 - Prob. 50EAPCh. 5 - Prob. 51EAPCh. 5 - Human Wattage. A typical adult uses about 2500...Ch. 5 - Electric Bill. Your electric utility bill probably...Ch. 5 - Prob. 54EAPCh. 5 - Prob. 55EAPCh. 5 - Prob. 56EAPCh. 5 - Prob. 57EAPCh. 5 - Prob. 58EAPCh. 5 - Prob. 59EAPCh. 5 - Prob. 60EAPCh. 5 - Prob. 61EAP
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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
- The greenhouse effect can be explained easily if you understand the laws of blackbody radiation. A greenhouse gas blocks the transmission of infrared light. Given that the incoming light to Earth is sunlight with a characteristic temperature of 5800 K (which peaks in the visible part of the spectrum) and the outgoing light from Earth has a characteristic temperature of about 300 K (which peaks in the infrared part of the spectrum), explain how greenhouse gases cause Earth to warm up. As part of your answer, discuss that greenhouse gases block both incoming and outgoing infrared light. Explain why these two effects don’t simply cancel each other, leading to no net temperature change.arrow_forwardAnswer these questions for celestial bodies at each of the following temperatures and then draw a conclusion about the relationship between temperature and wavelength of maximum intensity. What is the wavelength of maximum intensity? In which part of the electromagnetic spectrum (gamma-ray, X-ray, UV, visible light, IR, microwave, or radio) does this peak wavelength lie? Give an example of an object that might have this temperature. a. 50 K b. 500 K c. 5000 K d. 50,000 Karrow_forwardYou record the spectrum of a distant star using a telescope on the ground on Earth. Upon analysing the spectrum, you discover absorption lines spaced at intervals typical of oxygen atoms. Which of the following are possible interpretations of this evidence? Select all that apply. The width of the spectral lines gives the diameter of the star The star is likely orbited by habitable planets with breathable atmospheres. The height of the spectral lines above the star's general blackbody spectral curve tells us how much oxygen is in the star The atmosphere of Earth contains oxygen The red or blueshift of the set of lines can tell us the speed of the star's motion toward or away from usarrow_forward
- How many watts of radiation does a 1-meter-square region of the Sun’s spot emit, at a temperature of 5000 K? How much would the wattage increase if the temperature of the spot were twice as much, 10 000 K?arrow_forwardThe layer of the sun that we see is called the photosphere. It has a temperature of 5600 K. What is the sun’s temperature a) in degrees Celsius? b) in degrees Fahrenheit?arrow_forwardAstronomers can determine the heat of various areas of the universe by making observations about energy they emit. Gamma rays can be found in areas where there is a lot of star formation occurring. What would you guess about the temperature of these areas? Explain why.Do you think there would be a lot of particles present? Explain why.arrow_forward
- Explain how we use spectral absorption and emission lines to determine the composition of a gas.arrow_forwardHow to calculate.arrow_forwardComplete the following chart by using Wien's law for blackbodies. You may use a calculator and the Wien's law formula, and/or the interactive graph, to calculate the wavelength when given a temperature. Use the data table Blackbody Temperatures of the Electromagnetic Spectrum to identify the region of the electromagnetic spectrum where an object with the stated temperature emits most of its light. max (angstroms) Star Capella Sun Procyon Aldebaran Formalhaut Submit Answer T (kelvins) 4,940 5,780 6,530 4,010 8,200 EM Region ---Select--- ---Select--- Radio Microwave Infrared Visible Ultraviolet X-ray V Gamma Rayarrow_forward
- What should be the maximum height of the pile be so that the beneficial microbes do not die off at the warmest location? Note: Do not use Heissler charts to answer this question. and explain clearly and step by step pleasearrow_forward. How big would a square solar sail need to be in order for sunlight to exert a 12 N force on it (use 1,100 W/m² as the intensity of the sunlight).arrow_forwardWhat is a solar sail? and how does solar sailing work? How does a solar sail control it'd direction? How fast can it go? What is a solar sail made of, how big it has to be? What are the advantages? How expansive is it? Why do we want solar sails and where would they take us? What is the future of solar sailing and are there any existing missions? How can you relate solar sails with solar panels? How are they both like and unlike?arrow_forward
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