If you are in intergalactic space, calculate the number of CMB photons that you would absorb per second and also calculate the rate of radiative energy absorbed from CMB.
Q: Give examples of baryonic matter.
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Q: Since you are made mostly of water, you are very efficient at absorbing microwave photons. If you…
A: Given Since you are made mostly of water, you are very efficient at absorbing microwave photons. (a)…
Q: How much energy (in x 1016 Joule) does the Sun burn 1 kg of hydrogen fuel in a nuclear reaction?
A: Given data: Mass of hydrogen fuel, m=1 kg Speed of light, c=3×108m/s
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A: Write the expression for the wavelength of light. Here, h is Planck’s constant, p is the momentum,…
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Q: If neutrino oscillations do occur, will they violate conservation of the various lepton family…
A: If lepton number of the system conserved means the total number of lepton are same in before and…
Q: Why is it important to measure neutrinos and positrons coming from the sun?
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Q: CERN can accelerate protons up to 99.9999991% of the speed of light. What is the γ factor for these…
A: Given that The speed of the protons is (v) = 99.9999991% of the velocity of the…
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Q: The rest wavelength of the Hα transition of atomic hydrogen is 656.3 nm (recall that 1 nm=10-9 m).…
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Q: If a gamma ray from super nova emission has a packet of 10^20photon per one second, the wavelength…
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Q: A 5 micron droplet of water is being carried in standard air toward a 500 micron drop of water at a…
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Q: Is there other evidence of the Big Bang besides the well-documented red shifts?
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Q: How much time is the green dot after div 4? Answer in milliseconds (this and all time questions in…
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Q: Calculate the time it would take for Messier 87 to completely evaporate.
A: A black hole is a point in space-time where the gravitational force is so large that not even light…
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- Calculate the energy created from 1 kilogram of hydrogen fused. (with units kg & m/s, answer will be Joules)Give examples of nonbaryonic matter.In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun that occupy less space than our moon. Suppose that one of these black holes has a mass of 1x10^3 suns and a radius equal to one-half the radius of our moon. What is the density of the black hole in g/cm^3? The radius of our sun is 7.0x10^5 km, and it has an average density of 1.4x10^3 kg/m^3. The diameter of the moon is 2.16x10^3 miles.
- 2 of 7 Question A2 a) Calculate the mass loss rate of the Sun M due to the solar wind flow. Assume average properties of the solar wind of number density 6 protons cm³, and a flow speed of 450 km s-1. Express your answer in units of both kg per year, and solar masses per year. b) Suppose the solar wind flow is perfectly radial. Calculate the expected rate of change of solar rotation frequency dw at the present time, based on conservation of angular momen- tum. Give your answer in units of rad s-1 y-1 (i.e., radians per second per year) and also in terms of fractional change per year, i.e., 1 du. w dt' Use a current solar rotation period of P = 25.38 days to calculate the current angular frequency of rotation w. The moment of inertia of a uniform sphere is MR². You can assume that the radius of the Sun is approximately constant, and the change in its moment of inertia due to the solar wind is only due to the mass loss. Page 3 c) By observing the rotation period of stars similar to the…If Bν ~ 10-5 Jy Ω-1, what is the brightness temperature (TB) at 1 GHz?Please answer within 90 minutes.