Hubble constant, Physics

Assignment Help:

Hubble constant; H0 (E.P. Hubble; 1925):

The constant that determines the relationship among the distance to a galaxy and its velocity of recession because of the expansion of the Universe. As the Universe is self-gravitating, it is not constant truly. In cosmology, it is described as

H = (da/dt)/a,

where a refer to the 4-radius of the Universe. While evaluated for the present, it is written

H0 == H(t = now).

The Hubble constant is not known to great correctness (only about a factor of 2), however is supposed to lie somewhere among 50 and 100 km/s/Mpc.


Related Discussions:- Hubble constant

Determine the distance in parabolic motion, A sky diver in free fall reache...

A sky diver in free fall reaches a speed of 65.2 m/s when she opens her parachute. The parachute quickly slows her down to 7.30 m/s at a constant rate of 29.4 m/s 2 . During th

Determine the bending moment, Determine the Shear Force in kN rounded to 1 ...

Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the UDL on the beam is P52 kN/m (as for the previous question

Ohmic, did the resistance of an ohmic conductor depends on the applied volt...

did the resistance of an ohmic conductor depends on the applied voltage

Illustrate de broglie waves, Q. What are de Broglie waves? Matter in m...

Q. What are de Broglie waves? Matter in motion should be accompanied by waves called de Broglie waves. de Broglie wavelength λ = h / mv

Determine relative permeability of a paramagnetic substance, The relative p...

The relative permeability of a paramagnetic substance is (A) Unity.         (B) Slightly more than unity. (C) Zero.           (D) less than unity. Ans: The relativ

Define force, Force: push or pull upon an object resulting from the object...

Force: push or pull upon an object resulting from the object's dealings with another object. Whenever there is an interaction among two objects, there is a force upon every of

Moment of inertia, Moment of Inertia In this section we get formulae for...

Moment of Inertia In this section we get formulae for determining the moment of inertia or second moment of a mass around an axis for several common physical shapes. The mome

Physics Matlab Report, Hello, I have some computing physics coursework in...

Hello, I have some computing physics coursework involving Matlab. I would like to know if your organisation can get this coursework done for me. I am ready to upload the assignme

Superposition theorem, how to find output voltage using superposition theor...

how to find output voltage using superposition theorem

Define laplace correction, He customized Newton's formula suppose that prop...

He customized Newton's formula suppose that propagation of sound in gaseous medium is adiabatic process. For adiabatic method

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd