what is the mass of a star with a main- sequence lifetime of 3 billion years
Q: Star A and Star B are both on the main sequence. Star A is 74 times more luminous than Star B. What…
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Q: Suppose the Sun was part of a binary star system with a period of 15 years and an average separation…
A: Given data Time period ,T=15 years=15×3.154×107 sec Radius, r=10 AU=1.496×1012 m
Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
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Q: All stars start their lives with the same basic composition. What determines their differences? O…
A: Mass they formed with
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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Q: A red giant star might have radius = 104 times the solar radius, and luminosity = 1730 times solar…
A: This problem can be solved using Stefan-Boltzmann law of Black body radiation.
Q: Which of the following is most likely to occur when mass is continually added to a 1.5 solar mass…
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Q: Which of the following is NOT the result of the death of a massive star? Select one alternative:…
A: Hypernova is the type of phenomenon that happens when a massive star collapses into this and results…
Q: Effective Temperature (K) 25,000 10,000 -10 6,000 3,000 10 102 A +10- D 10-2 +15 B A 104 M F…
A: The Hertzsprung Russell diagram is used to plot the temperature of stars with their luminosity.…
Q: After a supernova explosion, the remaining core will collapse to form a neutron star if the mass of…
A: After a supernova explosion, the remaining core will collapse to form a neutron star if the mass of…
Q: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…
A: L/Lo = (M/Mo )3.5 here the luminosity is to be found in terms of Lo M = 4Mo
Q: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a a.…
A: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a white…
Q: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…
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Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…
A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…
Q: If a star is located at 62.5 pc and has an apparent magnitude of 6 what is it absolute magnitude?
A: The brightness of a star is determined by its composition and distance from the Earth. There are two…
Q: Put the steps of the life cycle of a star in order.
A: Required : Steps involved in star cycle.
Q: If the main-sequence mass lower limit is 0.08 solar mass and the brightest main-sequence stars are 1…
A: The Main Sequence Stars are a mass sequence, with low mass stars forming an equilibrium with a cool…
Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A:
Q: What are the approximate spectral type, temperature, absolute magnitude number, and luminosity of…
A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
Q: Rank the following stars in order of increasing radius: Star A Star B Star C Surface temperature…
A: For star A Surface temperature =6000 K Luminosity =1 For star B Surface temperature =4000 K…
Q: For each type of stellar explosion, identify its progenitor star
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Q: What is the life expectancy of a 2-solar-mass star?
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Q: Describe the forces acting on a star during the main sequence period of its life?
A: A star has its gravity, and due to the hot core of a star, it creates pressure within the gas. Two…
Q: (Further analysis of the nonlinear pendulum) Consider the nonlinear pendulum equation: d²0 dt² In…
A: Total energy of pendulum, E=L2(dθdt)2+g(1−cosθ)When the pendulum is vertically downward and is at…
Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.5 g/cm3.…
A: We have : Density = masscolumeVolume of star = 43x π x r3Diameter of star = 6 x 105kmRadius of star…
Q: A star has a parallax of 0.8 seconds of arc. What is the distance of the star?
A: Parallax can be defined as the change in the position of an object due to a change in the observer's…
Q: What is the lifetime on the main sequence of a 2-solar-mass star? a. 1.8 × 1011 years b.…
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Q: If parallax of a star is 0.22 arc-seconds and its apparent brightness is 50 x 10-6 W/m2 . What is…
A: Given: Apparent Brightness,b=50×10-6W/m2Parallax of star,p=0.22arc-secondsDistance to the…
Q: What size star is the sun? O supergiant O medium O giant O white dwarf
A: The sun size is about 696340 km in radius and it's mass is 1.989*10^30 kg.
Q: A 2-solar-mass star on the main sequence would have a luminosity of approximately ____________ solar…
A: Given A 2-solar-mass star on the main sequence would have a luminosity of approximately, as…
Q: The chemical abundance of population I stars a. indicates that they were formed before the…
A: Population I star consist of sun and tend to be hot, young, luminous and focused in the spiral…
Q: Observations show that stellar luminosity, L, and mass, M, are related by Lx M3.5 for main sequence…
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Q: What are the a) luminosity and b)wavelength of maximum emission for a star with a surface…
A: Given data Temperature of the star, T=2000 K radius of the star, R=108 m
Q: Which main-sequence star would be the least luminous? a. A b. B c. F d. G e. K
A: Answer:) option(a) A alpha century A is least luminous because its absolute magnitude (+4.4) which…
Q: If a star has a parallax of 0.016 arc second how far is it?
A: Parallax is the shift in the apparent position of stars when observed from different positions. This…
Q: Which star in the table below has the least surface temperature? Star Name d (parsecs) Parallax…
A: Since, distance of the star in terms of Parallax is, d=1parallax (in arc-sec)parsecs Now from…
Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0×10-12 watt/m?.…
A: Luminosity of star (L) = 7×1026 watt Apparent brightness (AB) = 4×10-12 Wm2
Q: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?
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Q: Consider two stars on the main sequence, A and B. Star A has a mass of Мо Star B has a mass of 0.2…
A: Solution attached in the photo
Q: A turnoff point corresponding to the oldest star cluster would occur at what spectral…
A: Turnoff point in HR diagram is the point where the star leaves the main sequence branch
what is the mass of a star with a main- sequence lifetime of 3 billion years
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