Chapter 29, Problem 32PE

### 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

# Some satellites use nuclear power. (a) If such a satellite emits a 1.00-W flux of γ rays having an average energy of 0.500 MeV, how many are emitted per second? (b) These γ rays affect other satellites. How far away must another satellite be to only receive one γ ray per second per square meter?

To determine

(a)

The number of photons emit per second. Some satellites use nuclear power. If such a satellite emits a 1.00 W flux of γ rays having an average energy of 0.500 MeV .

Explanation

Given info:

â€ƒâ€ƒp=1.00Â W

â€ƒâ€ƒE=0.50Ã—106Â eV

Calculation:

The number of photons per second are emitted by the flux of Î³ rays the satellite, we get

â€ƒâ€ƒp=nEÂ Â

Substituting the given values

â€ƒâ€ƒn=pEÂ Â

Substituting the given values of joule in term of electron volt, we get

â€ƒâ€ƒ1â€‰Jâ€‰=â€‰11.6Ã—10âˆ’19Â eV

â€ƒâ€ƒn=1

To determine

(b)

The distance far away must another satellite be to only receive one γ ray per second per square meter.

### 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