What evidence can you give that the corona has a very high temperature?
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Q: The solar wind carries mass away from the Sun at a rate of about 2 million ton/s (where 1 = 1000…
A: Sun is the star located at the center of our solar system and is a G-type main-sequence star (G2V).…
Q: Why is the sun orange?
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Q: how big is the sun?
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Q: During the Maunder minimum a. solar brightness dropped slightly b. the average surface temperature…
A: Maunder minimum is a time of reduced sunspot activity.
Q: Why do sunspots appear dark? a. Regions of the photosphere are obscured by material in the…
A: The solar spots are mostly cooler places than the surroundings
Q: why is the sun hot?
A: Sun can be defined as the star at the centre of the solar system, it is also called a heavenly body…
Q: sun emits light having maximum intensity at a wavelength 468nm. Assume emissivity of sun is 1.…
A: Option
Q: In a typical solar oscillation, the Sun’s surface moves up or down with a speed of 0.1m/s . If you…
A: Given data *The Sun’s surface moves up or down with a speed is v = 0.1m/s *The given wavelength is…
Q: The largest-amplitude solar pressure waves have periods of about 5 minutes and move at about 10…
A: Solar pressure waves are created by disturbances near the surface of the Sun. A wave can be…
Q: If you could run 5.9 kilometers at 8.4 km/hr, how much energy would you burn?This activity uses up…
A: Given: Speed v=8.4 km/hr=8.41000m3600s=8.4518m/s, Distance d=5.9km=5.9×1000m=5900m, Rate of energy…
Q: Discuss the origin of aurorae. (Your answer should make reference to the solar wind, the…
A: Required: The origin of aurorae.
Q: What is the approximate temperature of the sun at its chromosphere ?
A: The chromosphere is the third layer of Sun. It ranges from 400 km to 2100 km above the solar…
Q: The average density of the sun is 1. 4 g/cm3 What do you expect the density to be at 0.25 of Rsun?…
A: Given: The average density of the sun is ρs = 1.4 g/cm3 The radius of the sun is R = 6.9634 x 105 km…
Q: In the Sub giant phase which of the following is true? O The star is burning He in the core O The…
A: Given : In the Sub giant phase The star is burning He in the core The star is burning He in a shell…
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: A solar flare can release 1025 J. How many megatons of TNT would be equivalent?
A: TNT or Trinitrotoluene is a chemical used for a controlled explosion. Its IUPAC name is…
Q: If each square cm of the sun's surface radiates energy at the rate of 1.5x 10° cal/s/cm? and…
A: A blackbody is an object that is capable of absorbing all the radiation that falls on it and…
Q: what the Sun would look like from Earth if the entire photosphere were the same temperature as a…
A: AnswerReddish-orange
Q: What are the information we can get from knowledge of 1st brillouin zone and why the 1st brillouin…
A: The first Brillouin zone is a region in the reciprocal space of a crystal that contains all of the…
Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: The temperature of the celestial body is given to be 7K. In case of a celestial body which we…
Q: Use the Virial Theorem to estimate the temperature in the core of the Sun
A: Definition: Virial theorem states that when a system is in one equilibrium state and changes to…
Q: Why do two different gasses always have different spectral signatures?
A: Given Why do two different gasses always have different spectral signatures, as following below.
Q: Estimate the rate at which the Sun loses mass (kg/s) due to the solar wind. Assume the solar wind is…
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Q: Star 1 and star 2 have the same V-magnitude, V = 7.5. However, they have different B-magnitudes, B1…
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Q: Why does it take so long for the energy produced in the Sun's core to reach the surface?
A: The main source of energy in stars like our Sun is hydrogen fusion. In this process, hydrogen is…
Q: How long does it take for energy produced in the Sun's core to reach the photosphere?
A: Ans. (E) : a few hundred thousand years. Explanation :-
Q: What are the negative effects if you change the elements, functions and interconnectin of the solar…
A: We have discussed the negative effects of solar system when we change the elements, function and…
Q: Part (a) Express the current / through the circuit in terms of c, r and R. Part (b) Calculate the…
A: Voltage is V, internal resistance is r and external resistance added is R. We will find the current.…
Q: A star has a luminosity (power output) of 9.2x1026 W and a diameter of 6.1x108 m. What is its…
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Q: Describe factors that affect peaking and hot channel factors
A: The hot channel factor is defined as the ratio of maximum linear power density to the average local…
Q: Two stars have the same diameter and are at the same distance from us (but in different parts of the…
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Q: 2. List the equations of stellar structure in mathematical form and explain their physical meaning.…
A: Explanation: The set of equations of stellar structure in mathematical form are as follows. ∂P∂…
Q: Give the following figure of the sun, label the features observed and describe some of the…
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Q: Description: Imagine you are comparing the five electric hot plates (A – E) of different sizes and…
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Q: What was the minimum volumeVrequired to supply enough magneticenergy to fuel the flare? What was…
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Q: why does nuclear fusion in the sun only occur near the center?
A: Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more…
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