FOUNDATIONS OF ASTRONOMY-WEBASSIGN
14th Edition
ISBN: 9780357135655
Author: Seeds
Publisher: CENGAGE L
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Chapter 7, Problem 1SOP
To determine
Arrange the following objects emit blackbody
A hot iron, the sun, your body and ice cubes.
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Chapter 7 Solutions
FOUNDATIONS OF ASTRONOMY-WEBASSIGN
Ch. 7 - Prob. 1RQCh. 7 - Prob. 2RQCh. 7 - Prob. 3RQCh. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Prob. 7RQCh. 7 - Prob. 8RQCh. 7 - Prob. 9RQCh. 7 - Prob. 10RQ
Ch. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - Prob. 16RQCh. 7 - How is heat different from temperature?Ch. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - Prob. 20RQCh. 7 - Prob. 21RQCh. 7 - Prob. 22RQCh. 7 - Could an object be orbiting another object and we...Ch. 7 - Prob. 24RQCh. 7 - How Do We Know? How is the macroscopic world you...Ch. 7 - Prob. 1PCh. 7 - Answer these questions for celestial bodies at...Ch. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 1SOPCh. 7 - Prob. 2SOPCh. 7 - Prob. 1LTLCh. 7 - Prob. 2LTLCh. 7 - Prob. 3LTLCh. 7 - Prob. 4LTLCh. 7 - Prob. 5LTLCh. 7 - Prob. 6LTLCh. 7 - Prob. 7LTL
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- A blue-hot star is about twice as hot as a red-hot star. But the temperatures of the gases in advertising signs are about the same, whether they emit red or blue light. What is your explanation?arrow_forwardFor the purpose of this exercise, we consider the Earth as a blackbody at a temperature of 300K. Assuming that it is spherical with a radius equals to 6370 km, calculate the total amount energy emitted by the Earth (Hint: The total amount of energy emitted by a surface = amount of energy emitted per unit area x area of the surface). What wavelength range would you recommend to measure radiation emitted by the Earth using a satellite mounted sensor?arrow_forwardThe blackbody radiation emitted from a furnace peaks at a wavelength of 5.1 10-6 m (0.0000051 m). What is the temperature inside the furnace?arrow_forward
- What wavelength (in nanometers) is the peak intensity of the light coming from a star whose surface temperature is 8888 Kelvin? Calculate total energy radiated per unit area by a black body at this temperature.arrow_forwardCalculate the energy emitted by a blackbody at 1000°C per square meter?arrow_forwardThe star Betelgeuse has surface temperature 3590 K and can be regarded as a blackbody. (a) Find the wavelength at which Betelgeuse emits most strongly. Is this visible, ultraviolet, or infrared? (b) Find the amount of power radiated per unit area of the surface of Betelgeuse.arrow_forward
- U U U U E Which diagram(s) show emission of Ultraviolet light? F B D A A D e B e E C F e-arrow_forwardWhy is it impossible for a gas composed of atoms that all have their electrons in the ground state to produce an emission line?arrow_forwardCalculate the radiance of a 4,456-K blackbody at a wavelength of 632 nm.arrow_forward
- The temperature of a blackbody is 5505 o (a). What is the wavelength of the peak of the blackbody radiation curve for this blackbody? (b). What is the corresponding frequency? (c) Which part of the electromagnetic spectrum is this blackbody radiating?arrow_forwardWhich of the following statements are TRUE about the Sun's spectrum, which is shown in this image? Brightness 2.5 3.5 0 Jay 200 Sun's Spectrum vs. Thermal Radiator of a single temperature T = 5777 K peak spectrum of Sun spectrum of T=5777 K blackbody emission spectrum (continuum) absorption lines 400 600 800 1000 1200 1400 1600 Wavelength (nanometres) 1800 2000 The spectrum shows that the Sun emits light of all colors equally, which is why we see it as white. The spectrum shows the presence of many sunspots. The peaks and valleys in the black line reveal the chemical composition of the Sun. The spectrum shows absorption features (spectral lines). The spectrum represents a perfect blackbody.arrow_forwardA blackbody is brightest at a wavelength of 800 nm. At what wavelength would the blackbody be brightest if its temperature were tripled?arrow_forward
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