ZhiHeng ZhiHeng

18-08-2016
Mathematics

contestada

Help me with part (a)

Help me with part a class=

Respuesta :

18-08-2016

Hello,

ok i have found the anwser on the net.

Diameter of PM2.5=2.5µm=2.5*10^(-6) m =0.000 002 5 m

Area= 4*π*(1.25*10^(-6))^2=1,9950369987356622981533170541178e-11 m²=0.000 000 000 019 950 366 ... m²

Answer Link

Otras preguntas

If angle YXZ measures 90 degrees, which statement is true? (answers are below) segment XZ is perpendicular to segment WY WX =XY segment XZ is a perpendicular bi

3.2 identify and explain FIVE of Gender-based violence?

the marchetti soup company entered the following transactions during the month of june, purchased inventory on account for $215,000, paid $54,000 in salaries du

How long is a century? A from 1500 to 1600 B from 1500 to 1599 C from 1500 to 2500 D from 1500 1510

A particular antibiotic is eliminated from the blood with a half-life of 16 hours. how many hours does it take for 100-milligram dose to decrease to 30-milligra

How is the graph of g(x) = -(2x)³ related to the graph of f(x) = x³ ? The graph of g(x) is a vertical compression of the graph of f(x) by a factor of 2 and a re

The coordinate -2 has a weight of 3, the coordinate 5 has a weight of 1, and the coordinate 6 has a weight of 1. Find the weighted average.

Can someone help me with this? I really do need help. Can someone at least try to help? It's for personal finance. It is a project that I have to do. In case yo

Vincent found the volume of the prism below to be 1 7 9 cubic inches by filling it with unit cubes. Multiply the side lengths to see if Vincent was correct

elemental analysis of a chemical compound used as pineapple flavoring in alcoholic beverages reveals the following chemical composition: 62.04% C, 10.41% H, and

ACCESS MORE