Acork has a mass of 3 grams and a volume of 16 cms calculate the density

hey mate here is ur answer

solution

mass{m}=3 gram

             =3/1000

volume{v}=16cm

                =16/100

density=m/v

           =3/1000÷16/100

           =3/160

            =0.01875kg/m3

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)