A galaxy is at a distance of 9 . 5 × 10 24 m from us and is moving away with a speed of 2 . 1 × 10 7 m s - 1 . Calculate the Hubble constant based on this data.

Hubble constant is a constant of proportionality in the relation between the velocities of remote galaxies and their distances.The velocity of the galaxies has been determined by their redshift, a shift of the light they emit towards the red end of the spectrum. v = H × Distance 2 . 1 × 10 7 = H × 9 . 5 × 10 24 Hubble constant = 0 . 221 × 10 - 17 s - 1

A galaxy is at a distance of 9 . 5 × 10 24 m from us and is moving away with a speed of 2 . 1 × 10 7 m s - 1 . Estimate the speed in km s - 1 of a galaxy at a distance of 1 . 9 × 10 25 m .

Hubble constant is a constant of proportionality in the relation between the velocities of remote galaxies and their distances.The velocity of the galaxies has been determined by their redshift, a shift of the light they emit towards the red end of the spectrum. Here, H 1 = H 2 ⇒ 2 . 1 × 10 7 9 . 5 × 10 24 = v 2 1 . 9 × 10 25 ⇒ v 2 = 1 . 16343 × 10 - 7 km s - 1

E M B I B E

Physics for Cambridge International AS & A Level Coursebook 3rd Edition Digital Access>Chapter 31 - Astronomy and Cosmology>Question

David Sang and Graham Jones Solutions for Chapter: Astronomy and Cosmology, Exercise 6: Question

Author:David Sang & Graham Jones

David Sang Physics Solutions for Exercise - David Sang and Graham Jones Solutions for Chapter: Astronomy and Cosmology, Exercise 6: Question

Attempt the free practice questions on Chapter 31: Astronomy and Cosmology, Exercise 6: Question with hints and solutions to strengthen your understanding. Physics for Cambridge International AS & A Level Coursebook 3rd Edition Digital Access solutions are prepared by Experienced Embibe Experts.

Questions from David Sang and Graham Jones Solutions for Chapter: Astronomy and Cosmology, Exercise 6: Question with Hints & Solutions

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Physics for Cambridge International AS & A Level Coursebook 3rd Edition Digital Access>Chapter 31 - Astronomy and Cosmology>Question>Q 11

A galaxy is at a distance of $9.5 \times 10^{24} m$ from us and is moving away with a speed of $2.1 \times 10^{7} m s^{- 1}$ . Calculate the Hubble constant based on this data.

EASY

AS and A Level

IMPORTANT

Physics for Cambridge International AS & A Level Coursebook 3rd Edition Digital Access>Chapter 31 - Astronomy and Cosmology>Question>Q 11

A galaxy is at a distance of $9.5 \times 10^{24} m$ from us and is moving away with a speed of $2.1 \times 10^{7} m s^{- 1}$ . Estimate the speed in $km s^{- 1}$ of a galaxy at a distance of $1.9 \times 10^{25} m$ .

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