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Ted Mooney, P.E. RET
Pine Beach, NJ

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How to get parts weight?

August 17, 2009

HI,
I have figure below:

part's thickness: 0.2 mm
density: 8.7 g/cm3
surface are: 22 sq mm
How can I get part's weight in grams?
Plsease answer me...
THANKS
CHAW

Chaw Su
- Singapore

Hi, Chaw. You have not given us any context, and you can't solve the problem the easy way by weighing it, so I assume this is a homework question that you want someone to do for you. If I'm in error, please provide the context.

Always include the units when you work such problems and you'll know you've done it right because the answer will be in the right units. You multiply the area of the part (sq. mm) by its thickness (mm) to get the volume of the part (cm3). You multiply the volume of the part (cm3) by the weight of the material per unit volume (g/cm3) to get the weight (g).

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
August , 2009

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