Modern Physics
Modern Physics
3rd Edition
ISBN: 9781111794378
Author: Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher: Cengage Learning
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Question
Chapter 16, Problem 3P

(a)

To determine

The value of the distance.

(a)

Expert Solution
Check Mark

Answer to Problem 3P

The value of the distance is 7.2×109 light years_.

Explanation of Solution

Write the expression for the distance.

R=vH=0.55cH        (I)

Here, R is the distance, H is the Hubble’s constant, c is the speed of light.

Conclusion:

Substitute, (3.00×108m/s) for c, 23×103m/s-light year for H in equation (I) to find R.

R=0.55(3.00×108m/s)(23×103m/s-light year)=7.2×109light year

Thus, The value of the distance is 7.2×109 light years_.

(b)

To determine

The age of universe.

(b)

Expert Solution
Check Mark

Answer to Problem 3P

The age of universe is 13billion years_.

Explanation of Solution

Write the expression for the age of universe.

t=Rv=R0.55c        (II)

Here, t is the age of universe.

Conclusion:

Substitute, 7.2×109 light years for R in equation (II) to find t.

t=(7.2×109 light years)0.55c=(7.2×109 c (1 year))0.55c=13 billion years

Thus, the age of universe is 13billion years_.

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