Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge

S

Scott S

New member
of +2.40 pC......? Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +2.40 pC.
(a) What percentage of the electrons originally in the cube was removed?
(b) By what percentage has the mass of the cube decreased because of this removal?

I already figured out the answer to the first part (1.91x10^-15 %), but I can't figure out the second part. Can someone help me?
 
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