BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.2, Problem 96E
To determine

To find: how long it takes for a light ray from sum to reach the earth.

Expert Solution

Answer to Problem 96E

The time for a light ray from the sun to reach the earth

  500sec .

Explanation of Solution

Given information:

The speed of light is about 186000 mi/s.

Concept used:

Scientific notation:

A notation in which a given quantity can be expressed as a number with significant digits required for a specified degree of accuracy and multiplied by 10 to the appropriate power.

Calculation:

The distance from the earth to sun is about 93 million miles = 93000000 miles

The speed of light is about 186000 mi/s

Now, we find the time for a light ray from the sun to reach the earth

  Time=distancespeed=93000000186000=500sec

Have a homework question?

Subscribe to bartleby learn! Ask subject matter experts 30 homework questions each month. Plus, you’ll have access to millions of step-by-step textbook answers!