Scientific notation, SI units and and appropriate significant digits

Science
Tutor: None Selected Time limit: 1 Day

use appropriate scientific notation, SI units and significant digits to answer:

1.) 140,000,000 ng/cm^3

2.) 0.9450 m^2

Oct 22nd, 2015

Thank you for the opportunity to help you with your question!

1.) 140,000,000 ng/cm^3

convert to SI UNIT FOR DENSITY = kg/ m3

140,000,000* 10^-9 /1000 kg / 1.0* 10^-6 m3

= 140 kg/ m^3

2.

SI unit area is m2

= 9.45 * 10^-1 m^2

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 22nd, 2015

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