7) The H-alpha line from a star is observed to be 850 nm. Estimate its redshift
Q: 12) Estimate the wavelength of the radiation emitted by an interstellar cloud of 4000 K. nts)
A: Interstellar clouds are made of gas and dust particles that are left over after a star dies. When an…
Q: d) The Cosmic Microwave Background Radiation (CMB) is observed to have a present day temperature of…
A: To answer: The origin of the fluctuations in the Cosmic Microwave Background Radiation (CMB).
Q: About how much of the universe is believed to be composed of dark energy? O 68-73% O 10-12% O 4-5% O…
A: We know very less about the universe . and said universe is expand . the maximum thing is unknown…
Q: A Neutron is moving at a speed of 95% the speed of light, v= 0.95c A)Calculate the Lorenz…
A: A) Lorentz factor (γ)Since, γ=11-v2c2 ⋯⋯⋯⋯⋯⋯⋯⋯(1)Now, as already given that v=0.95 So, putting this…
Q: Determine the coordinates of the hole, if any.
A: The rational function is, R(x)=x-4x-2x+3x-4 thus, the common factor is x-4, thus the x co-ordinate…
Q: If there is no observable edge to the universe, can we determine where its center of expansion is?…
A: Let’s explain by taking a simple example of a balloon analogy to explain the expansion of the…
Q: SQU is trying a new particle accelerator design with a mechanical component ušing a spr 51.6x*+55.6x…
A: Here, the spring does not obey Hooke's law. Since the force exerted by the spring is a variable…
Q: (b) Calculate the demagnetizing field Ha of a uniformly magnetized sphere of radius R for r< R from…
A: The radius of the magnetized sphere is given as, R. The magnetic flux is given as, φmr=14πm·r→r3…
Q: 7:40 M l 89%É 3:45 * E F all 66% A edugen.wileyplus.com/edugen/ WileyPLUS MywyPus I Hlp I Cartact…
A: (given) Mass (m) of the rolller coaster = 1200 kg Speed of the wheel = 7.6 m/s Radius of the hill =…
Q: 4. Calculate the number density of the negative Hydrogen ion (H-), relative to neutral Hydrogen in…
A:
Q: Prove that the ratio between the spee electron in the first orbit to the speed [c(1/137)]?
A: Prove speed of electron in first orbit (v)speed of light…
Q: A galaxy moving away from the earth has a speed of 0.0100c. What wavelength do we observe for an ni…
A: Given: The speed of galaxy is v=0.0100c. The initial state of hydrogen atom is ni=7. The final…
Q: 40 Because the apparent recessional speeds of galaxies and quasars at great distances are close to…
A:
Q: If an object moves in a circle around you at a speed of 60000 km/sec, and you observe photons from…
A:
Q: What is the wavelength of the most energetic photon that can be emitted from a muonic atom with Z=1?
A: The electron on gaining energy becomes excited. They then jump from lower orbit to higher orbit. It…
Q: 15) Calculate the gravitational redshift caused by Sun on the photons coming from its surface.
A: As per general relativity when light moves away from a gravitational source its wavelength will…
Q: 27) Calculate the time it would take for 5 solar mass black to radiate its energy.
A: When stars with mass greater than 3 or 4 solar mass die the gravitational collapse is so large that…
Q: f 3. Assume that the MUF for a radio link of 2000 km is 30.6 MHz and the virtual height is 200 km.…
A: Given data : Radio link = 2000 km Virtual height = 200 km MUF = 30.6 MHz
Q: 3. Suppose the scale factor varies as a(t) = Act, where A and a are constants. (a) Can the constant…
A: Given, The scale factor varies as at=Aeαt
Q: The so-called Freeman law, based on the study of high surface brightness galaxies from 1970, states…
A:
Q: What was the age of the Universe when the redshift was 3,000? Assume the Cosmological Constant is…
A: Given the redshift z = 3000. Take Hubble's constant…
Q: Q5: A spectrophotometer measures the concentration of a sample dissolved in water by shining a light…
A: Since we have given, I = 70% of Io = 70/100 of Io…
Q: 25) Recall that Hubble’s Law is given by V=HR; this means that H has units of inverse seconds…
A: A parsec is 3.26 light-years and the speed of light is 3 X 105 km/sec. Use 3.156 X 107 sec/yr.
Q: Integrated ConceptsA galaxy moving away from the earth has a speed of 0.0100c. What wavelength do we…
A: The wavelength observe from the transition of hydrogen in the galaxy is,…
Q: 2) A very rough estimate for a star is given by the density profile: p1) = P. (1-) where p, is the…
A:
Q: The percentage uncertainity in the area of a circle of radius (2.5 ± 0. 1) × 103 cm is a) 4% b) 0.1%…
A: Given : r = 2.5 ∆r = 0.1
Q: (a) What is the most likely type of interaction of the anti-electron neutrinos with the detector…
A:
Q: For a 3p orbital, what are the total number of nodes? a) 3 b) 2 c) 1 d) 0
A: B
Q: 8) Calculate the luminosity of a star that has a radius of 3Rs and a temperature of 2Tsum-
A: The luminosity of a star or a galaxy is defined as the energy radiated by the star or galaxy.…
Q: Radiation is emitted from the sun over a wide range of wavelengths. Calculate the gravitational…
A: As per general relativity, gravity affects light. Lights energy will depend on the gravitational…
Q: 8nhv 1 u(v,T) = (8) 3ehu/KT -1 | dv u(v, T) (9) 15h3 1. Prove that Equation (8) at the limit of…
A: To prove, uv,T=8πhν3c31ehvKT-1and ∫0∞uv,Tdv=π2K4T415h3
Q: If the universe had a density equal to the critical density (a flat universe) and the Hubble…
A: Everything is contained within the universe. It includes all of the space as well as all of the…
Q: Pm (r) = 4
A: Given as, The radius of the magnetized sphere is given as, R. The magnetic flux is given as,
Q: Explain the theories Beyond the Standard Model.
A: Concept used: Standard model is the model which explains the governing forces of nature. Physics…
Q: If the scattering material is purely ionised hydrogen, what is the Eddington Luminosity for a…
A: For a scattering material of mass M that is consisted of purely ionized hydrogen, the Eddington…
Q: 3. Given R =-7953.8073Î – 4174.5370Ĵ – 1008.9496K km and V = 3.6460035Î – 4.9118820Ĵ –4.9193608Ê…
A:
Q: 26) To what size the Sun should shrink to become a black hole?pok
A: Schwarzschild radius is the limit to which a body can shrink before undergoing irreversible…
Q: At rest hydrogen has a spectral line at 143 nm if this line is observed at 138nm for the star Sirius…
A: Simple problem from special theory of relativity and specifically it's a problem of Doppler's…
Q: Prove that the ratio between the speed of an electron in the first orbit to the speed of light is…
A:
Q: Advanced Physics 10. By treating the hole as a blackbody, show that the energy density of photons…
A:
Q: 46 Figure 44-12 is a hypothetical plot of the recessional speeds v of galaxies against their…
A:
Q: A photon of wavelength of 1400Å is absorbed by an atom and two other photons are emitted. If one of…
A: Concept of energy of photon.
Q: The percentage uncertainity in the area of a circle of radius (2.5± 0. 1) × 10³ cm is a) 4% b) 0.1%…
A: Write the formula for the % uncertainty as, %uncertainity=absolute uncertainityreading×100
Step by step
Solved in 2 steps with 2 images
