Register
the speed of light is 3x10^8 meters per secound.The sun is approximately 230,000,000,000 meters from mars .How many secounds does it take for sunlight to reach mars?
74.9k views
5 votes
the speed of light is 3x10^8 meters per secound.The sun is approximately 230,000,000,000 meters from mars .How many secounds does it take for sunlight to reach mars?

User Rahbee Alvee
by
7.8k points

1 Answer

6 votes
you got to use dimensional analysis...

( 230,000,000,000 Meters ) x ( Seconds / 3*10^8 Meters ) = ANSWER

The meters cancel out and you are left with Seconds. divide and that's your answer :)
User Sean Cogan
by
8.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.0m questions

11.6m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!