Chapter 28, Problem 46PE

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

Chapter
Section

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

# The Big Bang that began the universe is estimated to have released 1068 J of energy. How many stars could half this energy create, assuming the average star's mass is 4.00 × 10 30 kg?

To determine

The number of stars can create half of energy released by Big Bang.

Explanation

Given info:

• The Big bang release 1068J of energy.
• The average mass of the star is 4.00Ã—1030â€‰kg.

Formula used:

Formula to find the total mass of star is,

â€ƒâ€ƒmtâ€‰=â€‰Etc2

Here, Etis the total energy of the stars, cis the speed of light.

As total energy (Et)of star is half of energy released by big bang (E), therefore,

â€ƒâ€ƒmtâ€‰=â€‰E2c2â€ƒâ€ƒâ€ƒâ€ƒâ€ƒâ€ƒEquation-1

Formula to find the total number of stars.

â€ƒâ€ƒNâ€‰=â€‰mtm

Here, mtis the total mass of stars and mis the mass of single star

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started