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 7, Problem 15RQ
To determine
How astronomers detect neutrinos from the Sun?
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Why is it important to measure neutrinos and positrons coming from the sun?
Explain why there is the low number of observed solar neutrinos?
Why was the Davis experiment only able to detect one-third of the neutrinos originally predicted?
Most of the neutrinos were absorbed by Earth’s atmosphere.
The neutrinos combined with other particles as they entered Earth’s atmosphere.
The neutrinos distributed evenly among three different flavors while traveling to Earth.
The number of neutrinos was too great to be held in the tank that Davis designed.
The other two-thirds of neutrinos dissipated while traveling to Earth.
Chapter 7 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 7 - Prob. 1RQCh. 7 - What evidence can you give that granulation is...Ch. 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 - How can solar flares affect Earth?Ch. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - Prob. 16RQCh. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Explain why the presence of spectral lines of a...Ch. 7 - What energy sources on Earth cannot be thought of...Ch. 7 - What would the spectrum of an auroral display look...Ch. 7 - Prob. 4DQCh. 7 - The radius of the Sun is 0.7 million km. Examine...Ch. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - If a sunspot has a temperature of 4200 K and the...Ch. 7 - How much energy is produced when the Sun converts...Ch. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - The United States consumes about 2.51019 J of...Ch. 7 - Prob. 10PCh. 7 - Prob. 1LTLCh. 7 - Prob. 2LTLCh. 7 - Prob. 3LTL
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- Someone suggests that astronomers build a special gamma-ray detector to detect gamma rays produced during the proton-proton chain in the core of the Sun, just like they built a neutrino detector. Explain why this would be a fruitless effort.arrow_forwardHow is a neutrino different from a neutron? List all the ways you can think of.arrow_forwardWhy is fission not an important energy source in the Sun?arrow_forward
- What conditions are required before proton-proton chain fusion can start in the Sun?arrow_forwardFrom the information in Figure 15.21, estimate the speed with which the particles in the CME in parts (c) and (d) are moving away from the Sun. Figure 15.21 Flare and Coronal Mass Ejection. This sequence of four images shows the evolution over time of a giant eruption on the Sun. (a) The event began at the location of a sunspot group, and (b) a flare is seen in far-ultraviolet light. (c) Fourteen hours later, a CME is seen blasting out into space. (d) Three hours later, this CME has expanded to form a giant cloud of particles escaping from the Sun and is beginning the journey out into the solar system. The white circle in (c) and (d) shows the diameter of the solar photosphere. The larger dark area shows where light from the Sun has been blocked out by a specially designed instrument to make it possible to see the faint emission from the corona. (credit a, b, c, d: modification of work by SOHO/EIT, SOHO/LASCO, SOHO/MDI (ESA & NASA))arrow_forwardAs recently as the late 1970s, some wrist watches were manufactured using tritium (3H) as a continuous source of energy to make the watch face luminous in the dark. If you had purchased such a watch 36 years ago, what percentage of the luminosity would remain today, based on the half-life of tritium (4500 days)? Include 3 significant figuresarrow_forward
- W S 7 What is the ultimate source of energy that makes the Sun shine? nuclear fusion O mechanical to thermal energy conversion O Kelvin-Helmholtz contraction O radioactivity O chemical burning # 3 e d с $ A t 4 f do in % 5 t D.O Σ Oll 6 0 T & 7 h ▸ u 8arrow_forwardCalculate the frequency shift produced by the normal Zeeman effect in the center of a sunspot that has a magnetic field strength of 0.3 T. (ints)arrow_forwardThe sun has a radius of 6.959 × 108 m and a surface temperature of 5.81 x 10° K. When the sun radiates at a rate of 3.91 x 1026 W and is a perfect emitter. What is the rate of energy emitted per square meter? Stefan-Boltzmann constant is 5.67 x 10-8 J/s-m2 K4 a) 5.6 x 107 W/m2 b) 12.8 x 107 W/m2 c) 6.4 x 107 W/m2 25.6 x 107 W/m2 5.6 x 1017 W/m2arrow_forward
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