which of the following is not true of sunspotsrejuven8 adjustable base troubleshooting
Sunspots may also be caused by changes in the Suns rotation, which can cause its poles to move, creating changes in the magnetic field and sunspot activity. b. Under these conditions, hydrogen atoms come so close together that they fuse. C) hotter and denser than the surface. The Sun Is Now More Active Than NASA Predicted. It Could Be In Its D) constantly rising to the surface through convection. A) The number of sunspots peaks approximately every 11 years. D) It quickly meets an ordinary electron, forming an electron-positron pair that remains stable. C from The Hertzsprung-Russell diagram is a plot of. The Sun Is Asleep. Deep 'Solar Minimum' Feared As 2020 - Forbes 4. C) 4 H becomes 1 He + energy. C) 5 billion years. C They are regions of reduced surface temperature, caused by concentrations of magnetic field flux that inhibit convection. D) 50 billion years. It increases to 4 times its original magnitude. Very hot material orbiting a black hole. 38) Which of the following statements about the sunspot cycle is not true? Select only one. The subsolar point is at the Tropic of Capricorn (23.5 S). What two pollutants react with water to produce acid rain? Only about 1/3 of the expected number of neutrinos is observed. C Sunspots can be up to 12 times larger than Earth. A. Blackbody spectrum B. A) nuclear fission. D) Neutrinos rarely, if ever, interact with your computer. The energy requirements are much larger than chemical reactions (i.e., fire) so this was then ruled out. C) extremely hot plasma flowing along magnetic field lines. Magnetic fields on the sun are produced by the sun's uneven rotation and. E) all of the above. B) Sunspots are brighter than the rest of the Sun's surface. B) joules c. the larger the stellar mass, the larger the luminosity. Question: Which one of the following is NOT true? Which of the following is TRUE? The Suns strong magnetic field gets twisted and tangled due to its convection, forming visible sunspot groups. A E) Nothing; mass-energy is conserved. c. The highest temperatures in the atmosphere occur in the. Reset Help deep-ocean trenches 1. D) The Sun initially began generating energy through nuclear fusion as it formed, but today it generates energy primarily through the sunspot cycle. The fundamental nuclear reaction occurring in the core of the Sun is D C) another name for the force that holds protons together in atomic nuclei. Which of the following is true with respect to the. C) They are holes in the solar surface through which we can see to deeper, darker layers of the Sun. They often appear in pairs or clusters. D) the Coriolis force C) core, radiation zone, convection zone, photosphere, chromosphere, corona computer-based processing tool for analyzing geographic data. Question: Which of the following statements about spectral types of stars is not true? D) The solar neutrino problem remains as perplexing as ever, and indeed makes everything we think we know about stars suspect. 8. Expert Answer. B B) It is the primary energy generation mechanism in the Sun today. A high-mass star near the end of its life undergoes successive, cycles Which of the following best explains why the Sun's luminosity gradually rises over billions of years? Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. The spectral class of the star Enif is K2 while that of the Sun is, G2. (A) The polarity of sunspots reverses typically every 22 years and the sunspot number also goes through a maximum-minimum cycle of 22 years. The 11 year sunspot cycle on the Sun is, a. C) They are regions nearly devoid of gas. convective motion of gases in the upper portion of the Sun's, 24. The proton-proton chain is A more modern hypothesis was that the Sun shone through the emission of thermal energy resulting from gravitational contraction, but this could only last for about 25 million years, far less than the age of Earth, before the Sun would have contracted to a point. 3) What do we mean when we say that the Sun is in gravitational equilibrium? D) The Sun has exhausted its supply of neutrinos. Which of the following best describes why the Sun emits most of its energy in the form of visible light? They occur in regions of lower-than-average magnetic fields. C Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. D. It results from the burning of fossil fuels. and It is based on the surviving letters of Galileo Galilei's daughter, the nun Suor Maria Celeste, and explores the relationship between Galileo and his daughter.It was nominated for the 2000 Pulitzer Prize for Biography or Autobiography. mostly carbon dioxide and water vapor. B B What voltage will he encounter on the input side of the transformer? c. C) Newtons C. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. They are cooler than the surrounding photosphere of the Sun. D) gravitational force *d. While the early part of the sunspot record before 1800 is still characterized by large uncertainties due to poorly observed periods, the more recent sunspot numbers are mainly affected by three . A Why must the Sun's rate of fusion gradually rise over billions of years? AST 101: Midterm 2 Solutions C) 1,000 K. The Sun has sufficient hydrogen to continue fusing into helium for how much longer? Fusion of iron nuclei into heavier nuclei requires energy rather, than b. Solely anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. Sunspots have distinct temperatures that are between 3000-4000 Kelvin, while the temperature of the rest of the Sun is 5000-6000 K. Sunspots are also constantly changing in shape and size, as their lifespans range from a few hours to several months. . If the solar core were to increase in temperature, the nuclear fusion rate would soar, generating excess energy that increases the pressure and pushes the core outwards. the parallel that is the farthest northern location for the subsolar point during the year. Space scientists study these to see how they perturb Earth's magnetic fields and affect satellites circling around Earth, but . Sunspots are darker because they are cooler than the surround area. A) remain stationary. Select one: The spectral type of a star can be used to determine its surface temperature. Which of the following best describes the current status of our understanding of the solar neutrino problem? Briefly describe why the fact that we detect neutrinos coming from the Sun supports the idea that the Sun generates energy by nuclear fusion. We can learn about the densities and other characteristics of the various layers within the Sun by studying how the waves propagate throughout the Sun. This is because sunspots are slightly cooler than their surrounding regions; typically temperatures in sunspots are about 3000 Kelvin cooler than the average surface temperature of the Suns corona, which is around 60000 K. Sunspots are relatively cool due to their reduced concentrations of magnetic fields, which causes the plasma to become less dense. How gravity behaves at the densest part of the Sun c. Why the outer layers of the Sun are hotter than the surface d. Why sunspots often appear and disappear in pairs e. Why solar activity seems to follow a cycle A mi padre y a m (nos-te) importan los actores de Hollywood. Chapter 11 Flashcards | Quizlet 14. D. The Northern Hemisphere spring officially begins. C) The chromosphere and corona are both best studied with visible light. Question 4 options: They are holes where we can see into the the interior of the Sun. Sunspots are cooler areas on the suns surface that are relatively darker than the surrounding surface and are caused by intense concentration of magnetic fields. *c. What processes are involved in the sunspot cycle? Astronomy Hw #19 Flashcards | Quizlet they can produce flares and prominencesc. B) hydrogen compounds such as methane. B) Neutrinos are created as a by-product of the proton-proton chain. B. It increases to 2 times Course Hero is not sponsored or endorsed by any college or university. Magnetism is the force that magnets exert when they attract or repel one another. Sunspots can appear in pairs or in groups and usually have diameters that are from 4,000 km to 50,000 km in size. d. No lakes or streams have been damaged by acid precipitation. B) the strong wind that blows sunspots around on the surface of the Sun b. ch 16 Pearson Questions Flashcards | Quizlet a mixture of gases that behaves like single gas. Because of the electromagnetic force, the two protons will C) Convection releases neutrinos, which random walk through the radiation zone. Curious about the Sun, Galileo used his telescope to learn more. Sunspots have a temperature that is about 1,500C cooler than the temperature of the rest of the suns surface. A) strong force A. Which is closest to the temperature of the core of the Sun? The ozonosphere is critical to life because it? These dark spots, or sunspots, appear in clusters of various sizes and have a temperature that is about 1500C cooler than the suns surrounding surface. C) magnetic fields trap ionized gases that absorb light. The Sun will exhaust its nuclear fuel in about Main sequence, red giant, planetary nebula, white dwarf: Main sequence, planetary nebula, red giant, white dwarf. During a time interval of 1.5 s\mu ss in the rest frame of the muons, half of the muons present at the beginning of the interval decay. Briefly describe what you will see as you descend. Anne Danahy Right now, about half the amount of hydrogen in the core of the Sun has been fused into helium. neutron star, black hole, white dwarf, 29. 32. QUESTION 30 According to the lastest survey estimates, which of the following classes of stars makes up about 8% of all the stars in the universe? a disk-shaped nebula of dust and gas rotating around a relatively. D. It is being depleted through interactions with human-produced chlorofluorocarbons. Galileo's Daughter - Wikipedia They are often seen as areas of reduced brightness or black spots on the surface of the Sun. Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. composition, origin, evolution. A) 4 tons Which of the following statements is not true? sulfur oxides and nitrogen oxides SVSU GEOG101! Chapter 1 Flashcards | Quizlet During this time, the number of spots can vary from a few to hundreds at a time. Another way that we can learn about the Sun is by capturing the particles in the solar wind that come from the Sun. D) The Sun's gas is on fire like flames from wood or coal, and these flames emit visible light. Sunspots have been observed by astronomers and recorded since the time of Galileo and they have been used to track solar activity. B) 5,800 K. All radio signals pass through this region virtually unaffected. 9. is itchy, painful, red, or bleeding is unusual in color Preventing sunspots You may be able to prevent sunspots on your face by limiting your exposure to UVA and UVB rays. the regular movement of a relatively constant number of sunspots. B) Nuclei are attracted to each other by the electromagnetic force, but this force is only strong enough to make nuclei stick when they are very close together. Sunspots are darker than the surrounding solar surface because they are caused by concentrations of strong magnetic fields that inhibit convective currents, preventing the transfer of heat from the interior of the Sun to the surface. C) electromagnetic force 4). D) trillions of degrees. During the cycle, the amount of activity in the sunspot region increases and decreases. Large, dark sunspots can persist on the Suns face for periods of days or weeks, though smaller ones tend to appear and vanish much faster. C) 4 tons The main cause of sunspots is the suns magnetic field. sunspots are brighter than the rest of the sun's surface. Trucks with a 35,000 pound capacity will be used for transport a) Compute the required volume of borrow pit excavation. D) Energy is consumed in the convection zone by the creation of electrons and positrons. At the height of this cycle, known as solar maximum, the Sun's magnetic poles flip. A) The Sun becomes less efficient and must increase the rate of fusion to produce the same amount of energy. known absorbs visible light wavelengths. C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. They also can create more auroras and can be a danger to satellites. more sunspots indicate increased solar radiation. *a. The helium produced from the fusion of hydrogen has less mass than the hydrogen that goes into its formation. A) chemical reactions b. Solved Which of the following statements about spectral - Chegg Which of the following best describes air pollution? B) The rate at which fusion occurs would increase, leading to an expansion of the core, which would in turn cause the temperature to drop back down. E. The equator always receives equal hours of day and night. A. A D) We can study solar neutrinos. a mixture of gases that behaves like single gas. To estimate the central temperature of the Sun, scientists At solar maximum, the height of magnetic activity, we observe many sunspots and solar flares. Finally, we can test our knowledge of nuclear physics and the fusion process in the core using observations of solar neutrinos. no larger than about 1.4 times the mass of the Sun, otherwise. The Sun appears to have a cycle of about 11 years during which it waxes and wanes. The polarity of the sunspots also changes at this time. The pressure from high-energy photons and neutrinos at the very, high 480 km (300 mi) above the Earth's surface. (Image credit: SOHO) The first of these refers to strong disturbances to Earth's magnetic field caused by ejected solar. Describe some of the early theories for why the Sun shines and why they are no longer accepted as viable. Key to Exam 3 - Form 1 Hundreds of lakes are incapable of supporting life due to high acidity. *c. D) the Sun is roughly the same color as blood. E) The Sun does not emit neutrinos. D) the strong force and the electromagnetic force. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. gases in the radiation zone. A) The Sun's surface is boiling. A) helioseismological fluctuations. a measurement of the surface temperatures of stars. *c. They occur in regions of lower-than-average magnetic fields. B ) type of satellite used for monitoring the Earth's surface. A) 600 million tons What is granulation in the Sun? sulfur oxides and ozone An ice storm breaks a transmission line and interrupts electric power to a town. D) We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface. Main sequence stars all have approximately the same mass, by, 25. Which of the following is true regarding day length? a. C) areas of the corona where magnetic field lines project out into space, allowing charged particles to escape and form the solar wind Satellites in low-Earth orbits are more likely to crash to Earth when the sunspot cycle is near solar maximum because
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