What is the most fascinating feature of the standard model
Q: Which Feynman diagram could show an electron emitting a photon. ?
A:
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: What is a rest-frame spectrum of a typical BCG?
A: BCG's are bright cluster galaxies are the brightest galaxies among group of galaxies. there are many…
Q: 3. The formula for Hubble's Law using the velocity v is valid only for velocities much smaller than…
A: Given data: Redshift z=4.89. The recessional velocity is given as, v=cz+12-1z+12+1 Here, c is the…
Q: The CMB contains roughly 400 million photons per m³. The energy of each photon depends on its…
A: Write the expression for the Wien displacement law. Here, T is the temperature.
Q: Use as an example the cases of the filled subshells of configuration ns? and np° to illustrate, by…
A:
Q: What is the role of symmetry in fundamental physics? Provide examples of symmetry principles in…
A: Symmetry plays a fundamental role in physics as it helps to simplify complex problems and provides a…
Q: 1. Use the energy conservation solution with = 0 and theorem in Section A.1.) of the wave equation…
A:
Q: 2. Here is a graph showing the motion of an object. 1104- 111 HI 100- 90- 80- 70 60 50 Velocity…
A: as we can see between t=4 to t=7 sthe v-t graph is nearly constant with v=70…
Q: what is synchrotron diffraction? why it is important in material science? explain with image?
A: In materials science, synchrotron diffraction is a technique used to examine the crystal structure…
Q: Rev5 Phys 1403 Stellar Magnitudes and Parallax Since the minimum brightness visible will be…
A: (1) Given: The magnitude of Mizor is 2.4. The brightness of Mizor in companion to Alcor is 4.37…
Q: What is the percentage difference mass loss between a Helium nucleus and 4 protons? My math came…
A:
Q: Why do we use half the length of the meter stick?
A:
Q: How to calculate 1/a exp?
A: Required : Value of 1/aexp We can find 1/aexp by taking the reciprocal of aexp . The table of…
Q: QUESTION 3 For the following temperature, select the proper Superpave binder grade at 50% and 98%…
A: Given: Average maximum pavement temperature = 43°±1.5°C minimum pavement temperature = -29°±2.5°C…
Q: The CMB contains roughly 400 million photons per m³. The energy of each photon depends on its…
A: The wavelength is 0.0011 m. The energy of a photon is 1.807×10-22 J.
Q: Consider the equation from the lab manual: m + fMs (2) T= 2n k Algebraically manipulate the above…
A: In this question we will square both side . And then open the bracket to get result.
Q: What is the Hubble Time in Gyr, given the following values of Ho? a. Ho= 50km/s/Mpc b. Ho=…
A: a. Ho= 50km/s/Mpcb. Ho= 75km/s/Mpcc. Ho= 100km/s/Mpc
Q: What is the most likely range of values for Hubble’s constant? What are the uncertainties in its…
A:
Q: What is the maximum energy, maximum frequency and minimum wavelength associated with an 6MV beam?
A:
Q: Why it is 9-3I1+.. instead of adding up all of them
A: The algebraic sum of all the voltages in a closed loop is zero.
Step by step
Solved in 2 steps
- Please sollllllvvve this question, Thanks sirWhich of the following is least reasonable regarding cosmic background radiation (CBR)? Group of answer choices CBR correponds to a solar temperature of about 6,000 degrees and implies that the Universe was about 3K right after the Big Bang. The original CBR corresponded to a much higher temperature, but the expansion of the Universe has caused to be strongly Doppler-shifted toward longer wavelengths. Satellite-based telescopes were crucial to the discovery of CBR because much of the CBR spectrum cannot be detected through our atmosphere. The motion of the Earth produces a Doppler shift, which causes CBR to appear a little hotter in front of us and a little colder behind us. Data for CBR is collected by pointing telescopes to regions that do not appear to have any bright objects.Needs Complete typed solution with 100 % accuracy.
- Complete the ray diagram age fromIf you find that the Hubble constant is double what we currently believe, how does this affect the calculated age of the universe? Group of answer choices It decreased it by a factor of four. It cuts it in half. It doubles it. It increases it by a factor of four.My question is What does an astronomer need to understand the fundamentals of to be able to calculate the age of the universe?
- why is it difficult to measure the Hubble constant?Go to Question 8 60 Msun I luminosity (solar units) 106 105 104 103 102 10 0.1 10-2 10-3 10-4 10-5 30 Msun 10 Solar Radii Lifetime 10 yrs 1 Solar Radius 0.1 Solar Radius 10-2 Solar Radius 10-3 Solar Radius 30,000 increasing temperature 102 Solar Radi B Centauri Spica 10 Msun Bellatrix MAIN Sirius B Lifetime 108 yrs B Rigel Deneb 6 Msun Achernar SEQUENCE Lifetime 10⁹ yrs WHITE SUPERGIANTS Msun Vega DWARFS Procyon B 103 Solar Radi Sirius Lifetime 1010 yrs A 10,000 Altair Canopus Procyon Sun Arcturus Polaris Lifetime 10¹1 yrs T Ceti 6,000 surface temperature (Kelvin) GIANTS x Centauri A Pollux x Centauri B Eridani F G K Aldebaran Barnard's Star Betelgeuse 61 Cygni A 61 Cygni B Lacaille 9352 0.3 Msun Antares M (It may help you to know that 1 Lsun is 3.8 x 1026 Watts. Use 3.1415 for Pi.) Wolf 359 Proxima Centauri DX Cancri Gliese 725 A Gliese 725 B 0.1 Msun Ross 128 3,000 decreasing temperature The physics of thermally radiating gases relates the luminosity (L), temperature (T) and radius…The density of the universe is a. equal to the critical density if the universe is closed. b. equal to the critical density if the universe is flat. c. greater than the critical density if the universe is flat. d. greater than the critical density if the universe is open. e. none of the above.