Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 6, Problem 5P
If one star has a temperature of 6000 K and another star has a temperature of 7000 K, h much more energy per second will the hotter star
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Chapter 6 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - Prob. 9RQCh. 6 - Prob. 10RQ
Ch. 6 - Prob. 11RQCh. 6 - How Do We Know? How is the world you see around...Ch. 6 - Prob. 1DQCh. 6 - Prob. 2DQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - If one star has a temperature of 6000 K and...Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 1LTLCh. 6 - Prob. 2LTLCh. 6 - Prob. 3LTLCh. 6 - Prob. 4LTL
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- Which surface has a higher temperature — the surface of a yellow star or that of a red star?arrow_forwardExplain how we can deduce the temperature of a star by determining its color.arrow_forwardHydrogen accounts for about 75% by mass of the matter at the surfaces of most stars. However, the absorption lines of hydrogen are strongest (of highest intensity) in the spectra of stars with a surface temperature of about 9000 K. They are weaker in the sun spectrum and are essentially nonexistent in very hot (temperatures above 25,000 K) or rather cool (temperatures below 3500 K) stars. Speculate as to why surface temperature affects the hydrogen absorption lines that we observe.arrow_forward
- If a star has a surface temperature of 25,000 K (2.50 ✕ 104 K), at what wavelength (in nm) will it radiate the most energy? nm Is this a cool or hot star? (Give your answer relative to the Sun.) coolhotarrow_forwardSuppose a certain star has a temperature of 10,000 Kelvins (K). It will emit light of many different wavelengths. But which wavelength of light will it emit the most of? Also: It is much hotter than the Sun. Do you think this star will appear redder in color than the Sun, or more blue?arrow_forwardIf one star has a temperature of 5,000 K and another star has a temperature of 8,500 , how much more energy per second will the hotter star radiate from each square meter of its surface? (asks for the difference, not ratio)arrow_forward
- Is light emitted from the surface of a massive star red-shifted or blue-shifted by gravity?arrow_forwardDuring a nuclear explosion, the core of the explosion reaches temperatures of about 10,000,000 K. What wavelength of light would be emitted by such explosion?arrow_forwardWhat is the rate of thermal radiation Emitted from a star with a radius of 2.310 x 10⁹m and a surface temperature of 8,420k? Assume that the spherical surface behaves as blackbody radiator .arrow_forward
- A star is moving toward Earth with a radial velocity (speed directly toward or away from Earth) of 40,000 km/s. If we take a spectrum of this star’s light, will we find it to be red shifted or blue shifted? By what fraction are the wavelengths in this star’s spectrum shifted? [Answer: λ0/λ = 0.88]arrow_forwardIf a star has a surface temperature of 9500K. What would be the frequency of the light given off at the peak wavelength, in Hertz?arrow_forwardA piece of iron is heated with a torch to a temperature of 928 K. How much more energy does it emit as blackbody radiation at 928 K than it does at room temperature, 290 K?arrow_forward
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