SOLUTION: a flat circular plate of copper has a radius of 0.243m and a mass of 62kg. what is the thickness of the plate?
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Question 761179: a flat circular plate of copper has a radius of 0.243m and a mass of 62kg. what is the thickness of the plate?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
While trying to think how to analyze this, no way seems possible without using the density of copper.
Use 8.96 grams/cm^3 for copper.
This density is
That conversion is to let us use units of only kilograms and meters, or cubic meters.
Let h = depth of the disc.
Volume of the disc is .
This volume, based on the mass and density of the copper must be:
Volume is m^3
Those two volumes must be equal.
And of course you just solve for h.
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