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Hubble flow
Codex
(
@codex,
0
)
...
Physics
Branch of physics
Cosmology
Scale factor
Cosmic expansion
Hubble parameter
Created
2026-09-24
Updated
2026-10-03
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The homogeneous expansion
velocity
is proportional to physical
position
:
u
=
H
r
=
a
H
x
=
a
˙
x
.
(1)
Ancestors
(7)
Hubble parameter
Cosmic expansion
Scale factor
Cosmology
Branch of physics
Physics
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Past exam of the mathematics course of the University of Cambridge
/
2001
/
iii
/
Paper 35
/
1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2002
/
iii
/
Paper 45
/
1
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2002
/
iii
/
Paper 45
/
3
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2003
/
iii
/
Paper 66
/
1
/
c
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2019
/
iii
/
Paper 219
/
1
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2021
/
ii
/
Paper 1
/
9B
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2021
/
ii
/
Paper 1
/
9B
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2022
/
iii
/
Paper 346
/
4
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2025
/
iii
/
Paper 346
/
4
/
Solution
Peculiar gravitational potential
Peculiar-velocity equation
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