# physics

The current in a lightning bolt is 1.6 105 A. How many coulombs of charge pass through a cross-sectional area of the lightning bolt in 0.70 s?

I don't know how to set this up???

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1. Since one ampere is, by definition, one Coulomb per second, just multiply 160,000 by 0.7.

You should use an ^ before your exponents, as in
1.6*10^5 A

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2. thanks! i got it

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