Question

Can you please tell me what he did in those steps ?
http://screencast.com/t/BQZfIPXVqw

Answer 1

1 m = 100 cm
1 cm = 10^-2 m
10^-6 m = 106-6 *100 cm = 10^-4 cm

Answer 2

1 cm^3 = how many m^3 ? @hartnn

Answer 3

1cm = 10^-2 m
1cm^3 = (10^-2)^3 m = 10^-6 m

Answer 4

so am I allowed to do (1.52 * 10^-6 m) / (1 * 10^-6 m)

Answer 5

? @hartnn

Answer 6

sorry, i don't understand what doubt you have...

Answer 7

(1.52 cm^3) / (1mm) = (1.52 * 10^-6 m) / (1 * 10^-6 m) ?

Answer 8

1mm = 10^-3 m actually

Answer 9

but how does mm come into picture ?

Answer 10

sorry I meant 1μm

Answer 11

then its correct

Answer 12

wait

Answer 13

(1.52 cm^3) / (1mm) = (1.52 * 10^-6 m^3) / (1 * 10^-6 m)

Answer 14

ooh , why ?

Answer 15

I thought 1cm^3 = (10^-2)^3 m = 10^-6 m

Answer 16

oops, i made the mistake,
1cm^3 = (10^-2)^3 m^3 = 10^-6 m^3
the dimensions will not change
it remains as length^3

Answer 17

aah ok, thanks man :)

Answer 18

welcome ^_^