Question

General Physics I,


Can I get some help solving this ?

http://screencast.com/t/C9k9wADf

Answer 1

divide by 1000 i think

Answer 2

cm is centimeter and ps I believe is picosecond
nm is nanometer fs is femtosecond
the funny looking u is micrometer and ns is nanosecond

use dimensional analysis
right now you have 30000000 meters/second
you need to be able to cancel the meters when converting to centimeter identify how many cm are there in a meter (100). And then how many picoseconds are there in a second (10^12)
so example would be
30000000 m/s x 100cm/1m x 1s/1000000000000 and then do the same for nm/fs as well as micrometer/nanosecond

Answer 3

3x10^7 * 10^9/10^6 ?

Answer 4

I just want to solve the very last one

Answer 5

how many nanometers are there in a meter? the nano goes on top and meter goes on bottom when doing a dimensional analysis. and the next to it would be how many femtoseconds are there in a second. the femto goes on bottom and the second goes on top
things get canceled out in their m/s form

Answer 6

I am trying to solve the third

Answer 7

This https://www.dropbox.com/s/fvj1xylmsfomi6r/Screenshot%202013-11-01%2019.56.28.jpg

Answer 8

;o

Answer 9

micrometer/nanosecond

Answer 10

So 10^9/10^6 , yes or no ?

Answer 11

yes

Answer 12

thank you