How many excess protons are in a positively charged object with a charge of +363 mC...
How many excess protons are in a positively charged object with a charge of +363 mC (millicoulombs)? The charge of 1 proton is +1.6×10−19C.
Express your answer using two significant figures.
Homework Answers
+1.6×10-19 C charge carries 1 proton
+1C charge carries 1/(1 6×10-19) number of proton
+363mC=0.363C charge carries 1/(1.6×10-19)×0.363
=2.269×1018 number of proton.
Answer with the 2 significant digit is 2.3×1018 number of protons.
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