Homework Answers
15. A type 2 supernova takes place by rapid collapse or explosion of a massive star with mass at least 8 times that of the sun.
So none of the answers is a progenitor.
16. type 1a supernova has no hydrogen and helium lines.
So option 4 is correct.
17. Both type 2 and 1a can add iron.
So option 2 is correct.
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QUESTION 15 Which star could be the progenitor of a type Il supernova a 4 solar...
Problem 6. (extra credit) [Two suns in the sunset. Type la supernova (also called the white...
Problem 6. (extra credit) [Two suns in the sunset. Type la supernova (also called the white dwarf supernova) has maximum luminosity Lsn equal to 5 billion solar luminosities Lsn = 5*10°Lsun. Consider the hypothetical scenario with supernova which appears in our sky to be as bright as the sun. In other words, the flux of radiation from the supernova on Earth is equal to the flux or radiation from the Sun at the distance Sun-Earth. Note that the equation for...
5) A star (no matter what its mass) spends most of its life Select one: a....
5) A star (no matter what its mass) spends most of its life Select one: a. as a protostar. b. as a main-sequence star. c. as a planetary nebula. d. as a red giant or supergiant. 6) What is the ultimate fate of an isolated white dwarf? Select one: a. It will cool down and become a cold black dwarf. b. As gravity overwhelms the electron degeneracy pressure, it will explode as a nova. c. As gravity overwhelms the electron...
What is the reason for two stars to have the same brightness but one being 100...
What is the reason for two stars to have the same brightness but one being 100 times more luminous than the other? One of them is 100 times more distant One of them is 10 times more distant One of them is 1000 times more distant One of them is 4π times more distant The Brightness scale like the inverse of the square of the distance (1/R2) T F What is parallax? The distance of a star A method to...
choose correct answer. no explanation needed QUESTION 31 اماں VIII w mu VII 11 OBA FG...
choose correct answer. no explanation needed
QUESTION 31 اماں VIII w mu VII 11 OBA FG KM This figure depicts the evolutionary track of a 2 Mo star, with the various evolutionary changes indicated. During which stage does the star have an inert (non-fusing) helium core? iv vil Hi ООО viii vi QUESTION 32 VI V и VE IV 1 OBA FG KM This figure depicts the evolutionary track of a 2 Mo star, with the various evolutionary changes indicated....
choose A B C D QUESTION 1 Star formation in giant gas clouds is a result...
choose A B C D QUESTION 1 Star formation in giant gas clouds is a result of competition between which forces? Light and rotation Light and dark Rotation and gas pressure Gravity and gas pressure 10 points QUESTION 2 What effect sets the largest size a star can have? The forming star is shining so strongly that it blows the collapsing gas cloud apart. If the star was any larger it would instantly form a Black Hole. If the...
#2 please ! Ro le Astronomy 1F03 Problem Set 3 Thursday, Nov 10th, 2019 Write your...
#2 please !
Ro le Astronomy 1F03 Problem Set 3 Thursday, Nov 10th, 2019 Write your answers on a separate sheet and show your work 1. The protesproton chain effectively c erta hyre en into hem according to 4 He. A Helium wus weighs 6.64518 x 10 IT kg and Hydrogen mucha proton) welches 1.67262 x 10 Workout the change in a when I kg of Hydrogen is converted completely into Helium 4. Convert the change in mass Per burning...
choose correct answer. no explanation needed QUESTION 10 How do astrophysicists account for neutrino emission from...
choose correct answer. no explanation needed
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...
PLEASE EXPLAIN WHY . QUESTION 15 Which of the following changes will increase the voltage of...
PLEASE EXPLAIN WHY .
QUESTION 15 Which of the following changes will increase the voltage of the cell Al(s)A3+(aq, 1.00 M )lCu2(aq, 1.00 M)|Cu(s)? I. Increasing the surface area of the Al electrode Il. Decreasing the concentration of A3+(aa) to 0.001 M lI. Decreasing the M concentration of Cu2 la) to 0.001 a. b. Ill only OG. II only o d. ll andI e1 and ll only
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type...
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type is capable of producing antibodies? Question 35 options: A) B cells B) T cells C) macrophages D) neutrophils E) both A and B Question 36 (2 points) This antibody is pentameric in structure and is the better at stimulating complement than other antibody classes (can form a staple conformation): Question 36 options: A) IgM B) IgE C) IgD D) IgA E) IgG Question 37...
choose correct answer. no explanation needed QUESTION 21 luminosity b о в А км The figure...
choose correct answer. no explanation needed
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...
Problem 6. (extra credit) [Two suns in the sunset. Type la supernova (also called the white dwarf supernova) has maximum luminosity Lsn equal to 5 billion solar luminosities Lsn = 5*10°Lsun. Consider the hypothetical scenario with supernova which appears in our sky to be as bright as the sun. In other words, the flux of radiation from the supernova on Earth is equal to the flux or radiation from the Sun at the distance Sun-Earth. Note that the equation for...
choose correct answer. no explanation needed
QUESTION 31 اماں VIII w mu VII 11 OBA FG KM This figure depicts the evolutionary track of a 2 Mo star, with the various evolutionary changes indicated. During which stage does the star have an inert (non-fusing) helium core? iv vil Hi ООО viii vi QUESTION 32 VI V и VE IV 1 OBA FG KM This figure depicts the evolutionary track of a 2 Mo star, with the various evolutionary changes indicated....
#2 please !
Ro le Astronomy 1F03 Problem Set 3 Thursday, Nov 10th, 2019 Write your answers on a separate sheet and show your work 1. The protesproton chain effectively c erta hyre en into hem according to 4 He. A Helium wus weighs 6.64518 x 10 IT kg and Hydrogen mucha proton) welches 1.67262 x 10 Workout the change in a when I kg of Hydrogen is converted completely into Helium 4. Convert the change in mass Per burning...
choose correct answer. no explanation needed
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...
PLEASE EXPLAIN WHY .
QUESTION 15 Which of the following changes will increase the voltage of the cell Al(s)A3+(aq, 1.00 M )lCu2(aq, 1.00 M)|Cu(s)? I. Increasing the surface area of the Al electrode Il. Decreasing the concentration of A3+(aa) to 0.001 M lI. Decreasing the M concentration of Cu2 la) to 0.001 a. b. Ill only OG. II only o d. ll andI e1 and ll only
choose correct answer. no explanation needed
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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