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ZhiHeng
ZhiHeng ZhiHeng
  • 18-08-2016
  • Mathematics
Answered

Help me with part (a)

Help me with part (a) class=

Verified Answer :

caylus
caylus caylus
  • 18-08-2016

Hello,

ok i have found the anwser on the net.


Diameter of PM2.5=2.5µm=2.510^(-6) m =0.000 002 5 m

Area= 4π(1.2510^(-6))^2=1,9950369987356622981533170541178e-11 m²=0.000 000 000 019 950 366 ... m²


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