What is the total energy of all the radiation in the current Hubble Radius (Length)?  Assume H0=70 km/s/Mpc. Ωradiation,0= 9.0 ×10−5  Your answer must be in units of Joules and in scientific notation

Q: Compute the momentum and energy of a top quark with a wavelength of 38nm. Energy: 5.216e-14 X Units:…

A: By the de broglie relationship,

Q: Why wouldn't you expect to detect strong 21 cmt emission from an HIl region?

A: The 21 cm line corresponds to the wavelength of hydrogen gas. At 1420 Mhz the radiation released by…

Q: Suppose the energy density of the cosmological constant is equal to the present critical density En…

A: Einstein came up with the universal or cosmological constant to balance the calculations in his…

Q: Solev the attached

A: Concept used: Doppler broadening effect is effect due to which broadening of transition lines during…

Q: Assume that the protons in a hot ball of protons each have a kinetic energy equal to kT, where k is…

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Q: Calculate the proton separation energy for C

A: Nucleons inside the nucleus are bound together due to their binding energy. The energy required to…

Q: We need to estimate the temperature at recombination from the figure below. (Estimate a temperature…

A: From the graph, the temperature at the recombination i;

Q: Most radiation detectors are gas-filled and solid-state detectors, but liquid scintillation…

A: Gas filled detectors are one of the most commonly used radiation detectors. They work on the general…

Q: Exercise 2. Electrons in the outer and inner Van Allen radiation belts have energy as listed below.…

A: Given that,  Outer radiation belt: Ek = 4.0 x 10^4 eV  Inner radiation belt: Ek = 1.6 x 10^6 eV

Q: What is the maximum energy, maximum frequency and minimum wavelength associated with an 6MV beam?

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Q: For 208Fr, what is the contribution of the asymmetry term in the binding energy formula of the…

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Q: What was the approximate number density of CMB photons when the CMB had a higher temperature of 507…

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Q: According to the article Alien Antimatter Crashes into Earth e: More than 60 years ago, future Nobel…

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Q: A long-baseline neutrino diss-appearance experiment wants to measure neutrino oscillations with an…

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Q: Estimate the thermally Doppler-broadened line widths for the hydrogen Lya, C III, O VI, and Mg X…

A: When there is relative motion between source and observer there is a change in frequency. This…

Q: blackbody at a temperature of 5000 K emits radiation. Calculate the wavelength at which the…

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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: calculate the ratio of eddusion rates for krypton and xenon gasses 0.637 : 1 1.25 : 1 1.57 : 1…

A: The ratio of the rates of effusion of two gases is equal to square root of the inverse ratio of…

Q: Calculate the following: Calculate the wavelength that an astronaut radio must be tuned to to sense…

A: Is the required wavelength that an astronaut radio must be tuned to sense signals.

Q: A photon produces a proton−antiproton pair according to the reaction γ → p +P- . What is the minimum…

A: Given data:   The charge of an electron  is: q = 1.6×10-19 C  The Planck's constant is: h = 6.63 ×…

Q: Calculate minimum and maximum energies that can be associated with IR?

A: The IR or Infra red light lies in the wavelength region 700 nm - 1 mm.  The energy corresponding to…

Q: First order: Ca Cb = i ħ 2 ħ H'aa Hae wot ba ca (t) cb (t) = 1 = 6 Hba (t')eiwot' dt' - ħ 0 Haa (t')…

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Q: Provide the answers in 90 minutes and count as 2 questions if necessary.

A: PART A:   PART B: PART C: PART D: