What is hydrostatic equilibrium in stars.
Q: All stars start their lives with the same basic composition. What determines their differences? O…
A: Mass they formed with
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: Which type of fusion reaction supports stars for the longest time? Group of answer choices hydrogen…
A: The hydrogen to helium fusion reaction supports stars for the longest time. Because, the force of…
Q: What is an emission nebula?
A: The space between stars and galaxies is filled with clouds of gas and dust. These clouds of gas and…
Q: Why are metals less abundant in older stars than in younger stars?
A: Answer: The metals which basically are non hydrogen and helium material are produced or created in…
Q: A star's Zero Age Main Sequence (ZAMS) radius R, luminosity L, and effective temperature Teff depend…
A: Given: Zero Age Main Sequence is beginning point of the main sequence of the star. The radius at…
Q: The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of…
A:
Q: How do the temperature and size of a Sun-sized star fluctuate over the course of its life?…
A: Immediate Assistance : You cannot wait for help if you require quick aid. Because it also implies…
Q: Which stars are associated with a planetary nebula? black holes, neutron star's, white dwarf or main…
A: Required : What are planetary nebula associated with.
Q: For each type of stellar explosion, identify its progenitor star
A:
Q: Why is being able to determine a distance form just an angular measurement important? Also why is…
A: As we know, The angular measurements are the divided circle by the scale of a vernier protractor. It…
Q: What is the life expectancy (in years of a 19M main-sequence Star? What is the life expectancy (in…
A:
Q: Star A has a temperature of 3000K; Star B has a temperature of 5000K; Star C has a temperature of…
A: Given value--- temperature of star A = 3000 K. temperature of star B = 5000 K. Temperature of…
Q: The telescope and CCD camera described in question 2 are scheduled to observe the star cluster M67…
A: The cluster M67 is never visible in the sky from London so we should abandon any plans to observe…
Q: The percentage of helium used immediately during a star’s helium flash phase is
A: It is a very brief phase
Q: Why massive stars are short lived?
A: A massive star has a shorter life spanthan an average star because of fasterhydrogen fuel…
Q: What causes a star to move off the main sequence?
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Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: Why do distant stars look redder than their spectral types suggest?
A: The pace is mostly empty but there are areas of large density of the interstellar medium. It…
Q: If our Sun were surrounded by a cloud of gas, would this cloud be an emission nebula? Why or why…
A: Emission nebulae are formed in regions surrounding young stars. When a star is formed in the…
Q: Why do metal-poor stars have a wider range of orbital shapes than metal-rich stars like the sun?
A: Stars are classified into two categories. Population I and Population II. Population I stars are…
Q: Star A has a temperature of 5,000 K. How much energy per second (in J/s/m2) does it radiate from a…
A:
Q: Tutorial Star A has a temperature of 6,000 K. How much energy per second (in J/s/m²) does it radiate…
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Q: 5. A star whose temperature is 8000 K has a peak wavelength of 362.5 nm, according to Wien's Law. If…
A: The peak wavelength by observer on earth = 362.365nm.Your required explanation is given below. Thank…
Q: The total luminosity of the Sun is 4e26 Watts. a) What is the mass (in kg) that the Sun loses each…
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Q: The first stars to form in our galaxy a. had circular orbits. b. had highly elliptical…
A: Population 1 stars are the newer and younger stars.
Q: Based on what you know about main-sequence stars, select all of the correct statements from the…
A: Required : Correct statements .
Q: Based on what you know about the interactions between stars and other interstellar media, select all…
A: Interstellar space and formation of stars Interstellar space is the space between stars. This space…
Q: 2. A solar-type star is seen with an apparent magnitude my = 30. Assuming that there is no…
A: As we know that,The distance modulus is a common technique of measuring distances in astronomy. It…
Q: Select all of the statements about the main sequence stage in the life of a star that are TRUE:…
A: The statements about the main sequence stage in the life of a star that are TRUE: All stars spend…
Q: Why does a star's life expectancy depend on its mass?
A: Stars are formed due to the gravitational collapse of interstellar gas. This collapse is…
Q: In which component of the interstellar medium do new stars form? O molecular clouds O HII Intercloud…
A: Interstellar medium is the medium between matter and radiation. The matter are gases (gas cloud),…
Q: Describe the principle of hydrostatic equilibrium as it relates to the internal structure of a star.
A: Stars are formed due to the gravitational collapse of interstellar gas and fusion reaction. The…
Q: What is fusion? How does it happen inside a star?
A: Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one…
Q: Why do old stars have less metal compared to new ones?
A: As per the Big Bang theory, the universe expanded from an initial high-density state. In the…
Q: Why do stars tend to form in groups?
A: Space is filled with an interstellar medium that consists of gas and dust particles. The density…
Q: What changes occur in the temperature and size of a Sun-sized star as it goes through its life…
A: As the star goes through its final stage of life cycle following thing happens We know that it…
Q: the following statements so that they make sense according to star birth stages 1.At this stage,…
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Q: Consider three main sequence stars: Star A is 14,500 K, Star B is 2,900 K, and Star C is 5,500 K.…
A:
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- List the following 5 terms in order through a stars life cycle (starting with the sun), through the remainder of its lifetime: a. Black dwarf b. Planetary nebula c. Red giant d. Star (Sun) e. White dwarfHow is the blue color of a reflection nebula related to the blue color of the daytime sky?What evidence is there that star formation has occurred recently?
- In the star clusters shown, which one is younger and why?Match each statement with the appropriate item (if the first corresponds to B and the next 4 to C, enter BCCCC) 1) group of stars that was formed all at the same time, with the same composition 2) the top of the main sequence of a cluster; more massive stars in the cluster have already evolved 3) globular clusters stars that are burning helium in their core 4) young, spread out star cluster 5) old, dense star cluster A. main sequence turnoff B. open cluster C. star cluster D. horizontal branch stars E. globular clusterWhy are emission nebulae red ?