mass units from integrals

kelly070280

New member
Joined
Jul 7, 2006
Messages
7
Consider the formula for the mass m of a lamina in a bounded region S of the x-y plane, with density δ(x,y).

m=integral of {S} over δ(x,y)dA

Suppose that mass is measured in grams (g ) and length is measured in centimeters (cm ).

What are the units of δ(x,y) and what are the units of dA that will produce the proper units for m?


I'm not even sure where to go with this one. The only thing I thought of was that within my chemistry class we measured density as g/(cm^3) so would this be of any help to me?

Thanks!
 
density of planar lamina would be g/cm<sup>2</sup>

the area element, dA, is in cm<sup>2</sup>.
 
Top