choose correct answer. no explanation needed QUESTION 31 اماں VIII w mu VII 11 OBA FG...
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QUESTION 21 luminosity b о в А км The figure above shows groups of stars on the H-R diagram, delineated broadly by groups (a) through (e). Which group represents stars that are hot and dim? a b OOooo QUESTION 22 luminosity b ов А F G KM The figure above shows groups of stars on the H-R diagram, delineated broadly by groups (a) through (e). Which group represents stars of the smallest radi? a...
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QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...
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QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...