Answer :

first you multiply 1.42x1000 to convert from g to mg
then you divide 1420/100 to convert from cm to mm
so the answer is 14.2 mg/mm^2

Answer: The value in milligram per square millimeter is [tex]14.2mg/mm^2[/tex]

Explanation:

We are given a value of [tex]1.42g/cm^2[/tex]

To convert this value into milligrams per square millimeters, we use the conversion factor:

1 g = 1000 mg

[tex]1cm^2=100mm^2[/tex]

Converting the above speed into miles per hour, we get:

[tex]\Rightarrow (\frac{1.42g}{cm^2})\times (\frac{1000mg}{1g})\times (\frac{1cm^2}{100mm^2})\\\\\Rightarrow 14.2mg/mm^2[/tex]

Hence, the value in milligram per square millimeter is [tex]14.2mg/mm^2[/tex]