a) What is 6.51x10^-8 m in units of nanometres?
b) What is 5.84x10^9 g in units of megagrammes?
c) What is 7.42x10^-4 J in units of microjoules?
2007-12-24 01:14:41 · 2 answers · asked by Jerome D 1 in Food & Drink ➔ Beer, Wine & Spirits
a) What is 6.51x10^-8 m in units of nanometres?
1nm = 10^-9m
so
6.51x10^-8m = 6.51x10^1x10^-9m = 65.1nm
b) What is 5.84x10^9 g in units of megagrammes?
1Mg = 10^6g
so
5.84x10^9g = 5.84x10^3x10^6g = 5840Mg
c) What is 7.42x10^-4 J in units of microjoules?
1μJ = 10^-6J
so
7.42x10^-4J = 7.42x10^2x10^-6J = 742J
,.,.,..
2007-12-25 02:35:12 · answer #1 · answered by The Wolf 6 · 1⤊ 0⤋
6.51 x 10^-8m x 10^9 nm/1m = 6.51 x 10 nm.
A conversion factor is a fair exchange. The thing on top has the same value as the thing on the bottom. The units you want to get into are on top; the ones to get out of are on the bottom; and the units should cancel to take you where you want to be.
Do the others the same way.
2007-12-24 09:52:19 · answer #2 · answered by Facts Matter 7 · 0⤊ 0⤋