Question

I don't understand one part of this question please help.

A cork has a volume of 4cm^3 and weights 10^-3N. What is the specific gravity of cork?

m=F/g=10^-2/10=10^-3 kg

Density=m/v
(10^-3/4cm^3)*(10^2cm/1m)^3=250kg/m^3

Where did (10^2cm/1m)^3 came from?
Please help this remains a great mystery to me

Answer 1

LOL u have to convert he NEWTON unit to gram :)
10^-3 N = 0.1 gram

Answer 2

\[10^2[\text {cm}]=100[\text {cm}]=1[\text m]\]
\[\implies\frac{10^2\text {cm}}{1[\text m]}=1\]
\[\implies\left(\frac{10^2\text {cm}}{1[\text m]}\right)^3=1^3=1\]

this has been used to convert cubic centimeters to cubic meters

Answer 3

and also volume 4cm^3 to 4*10^-2 m^3

Answer 4

density = mass/ volume = 0.1 g /4 *10^-2 = 2.5 g/m3
=

Answer 5

hey is that right or what you did is right :?????