# physics

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calculate the net charge on a substance consisting of a combination of 3.0X10^13 protons and 8.6X10^13 electrons.

• physics -

What is (8.6-3.0)E13*chargeperelectron?

• physics -

The number of electrons is greater than the number of protons, therefore,
the net charge is negative:
(8.6-3) •10613•(-1.6•10^-19)=
= - 8.97•10-6 C

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