Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Question
Chapter 12, Problem 4TY
To determine
Select the correct option for the number of solar neutrinos per second pass through us during night time.
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Explain why there is the low number of observed solar neutrinos?
The capture of too few solar neutrinos by Davis in the solar neutrino experiment
a.
can be explained if the sun is not undergoing thermonuclear fusion of hydrogen in its core.
b.
indicates that the sun’s core is much cooler than expected.
c.
indicates that the sun’s core is much hotter than expected.
d.
indicates that the sun’s core is convective.
e.
is explained by none of the above.
Considering your answer to the above question, how does this timescale for the Sun's evaporation by the solar wind compare to the age of the
Universe?
O The solar wind evaporation time is much longer than the age of the Universe
O The solar wind evaporation time is much shorter than the age of the Universe.
O The solar wind evaporation time is close to the age of the Universe (ie, within a few billion years
Chapter 12 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 12 - Prob. 1QFRCh. 12 - Prob. 2QFRCh. 12 - Prob. 3QFRCh. 12 - Prob. 4QFRCh. 12 - Prob. 5QFRCh. 12 - Prob. 6QFRCh. 12 - Prob. 7QFRCh. 12 - Prob. 8QFRCh. 12 - Prob. 9QFRCh. 12 - Prob. 10QFR
Ch. 12 - Prob. 11QFRCh. 12 - Prob. 12QFRCh. 12 - Prob. 13QFRCh. 12 - Prob. 14QFRCh. 12 - Prob. 15QFRCh. 12 - Prob. 16QFRCh. 12 - Prob. 17QFRCh. 12 - Prob. 18QFRCh. 12 - Prob. 19QFRCh. 12 - Prob. 20QFRCh. 12 - Prob. 1TQCh. 12 - Prob. 2TQCh. 12 - Prob. 3TQCh. 12 - Prob. 4TQCh. 12 - Prob. 5TQCh. 12 - Prob. 6TQCh. 12 - Prob. 7TQCh. 12 - Prob. 8TQCh. 12 - Prob. 9TQCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10PCh. 12 - Prob. 11PCh. 12 - Prob. 1TYCh. 12 - Prob. 2TYCh. 12 - Prob. 3TYCh. 12 - Prob. 4TYCh. 12 - Prob. 5TYCh. 12 - Prob. 6TY
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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
- 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_forwardSuppose you observe a major solar flare while astronauts are orbiting Earth. Use the data in the text to calculate how long it will before the charged particles ejected from the Sun during the flare reach them.arrow_forwardWhat do measurements of the number of neutrinos emitted by the Sun tell us about conditions deep in the solar interior?arrow_forward
- Studying neutrinos helped to explain how our Sun works but led to changes in theories of particle physics. How is this process consistent with the scientific process? How can details about a theory be adjusted without undermining other discoveries made through the theory’s predictions?arrow_forwardFor several hundred years, astronomers have kept track of the number of solar flares, or sunspots which occur on the surface of the sun. The number of sunspots counted varies periodically from a minimum of about 10 per year to a maximum of about 110 per year. Between the maximum that occurred in the years 1750 and 1948, there were 18 completed cycles. A.) What is the period of the sunspot cycle? B.) Assume that the number of sunspots varies sinusoidally with the year. Sketch a graph of two sun spot cycles, starting in 1948. C.) Write an equation expressing the number of sunspots per year in terms of the year. D.) what is the first year after 2000 in which the number of sunspots will be about 35? A maximum?arrow_forwardAssume that the solar wind causes the Sun to lose mass at a rate of 2 x 10’ kg/s. If you assume the wind is emitted a constant rate, estimate the time (in units of Gyr =Gigayears = 10° years) that it will take the entire Sun to evaporate via its solar wind emission. (Of course, the rate won't be constant throughout the lifetime of the Sun---this is just a rough estimate to understand the timescale associated with this process.) [Hint: you need to look up a number and do several unit conversions; this is a *rate* problem. Enter your answer as an integer or decimal, NOT in scientific notation.]arrow_forward
- Consider the two nuclear reactions I: A + B → C + E II: C + D → F + G(a) Show that the net disintegration energy for these two reactions (Qnet = QI + QII) is identical to the disintegration energy for the net reaction A + B + D → E + F + G(b) One chain of reactions in the Sun’s core is the protonproton cycle. Based on part (a), what is Qnet for this sequence?arrow_forwardHow much energy does 1 nuclear reaction which converts 4 protons to a Helium nucleus generate? In order to maintain thermal equilibrium, how many such nuclear reactions have to occur every second? What is hydrostatic equilibrium?arrow_forward
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