Ariana

I have to convert some visible light spectrum.

I know that 1 nanometer is equivalent to 1x10^-9.

E.g: the wavelength of red in nm is 625 to 740. How do you convert it to m?

Thank you!

I am doing an essay about Lead, Mercury and Arsenic. I know they are all poisonous. But anything about it that helped people prevent something bad in the past or present?

I need to download Meg Cabot's Queen of Babble in the Big City,

particularly. Anyone knows? thank you!

I need some. I like All time low, Quietdrive and Paramore..

Thank you=).

What base does it use? Please explain the relationship between Binary and Hexadecimal. Show how "A0D3" this hexadecimal number is represented in both binary and base10. Please include an explanation.

I'm just curious.

Are we still using it? Also, Please tell me how to write "2007" in Babylonian number system. I'm confused. Thanks.

I installed Opera, Netscape and Firefox internet browsers in my laptop and all doesn't work. I turned the Windows Firewall off and it's still the same. My Internet connection is fine. What could be the damn problem?

Unable to connect

Firefox can't establish a connection to the server at yahoo.com.

* The site could be temporarily unavailable or too busy. Try again in a few

moments.

* If you are unable to load any pages, check your computer's network

connection.

* If your computer or network is protected by a firewall or proxy, make sure

that Firefox is permitted to access the Web.

that's what Mozilla displays when I first started it. What should I do?