An object has a -4 c charge. the object breaks into two pieces. one piece has a charge of -5 c. what is the exact charge (in c. of the other piece? do not include units with your answer.

Let's call Q the initial charge of the object, which is:


When it breaks, the two pieces will have charge  and , and since the total charge must be conserved, the sum of these two charges must be equal to the initial charge of the object:


We also know the charge of one of the two pieces:


So, by substituting Q and Q1 into the equation, we can find the charge of the second piece, Q2:

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