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Q. A strong lightning bolt transfers about 25 C to Earth. a) How many electrons are transferred. b)If each water molecule donates one electron, what mass lost an electron to the lightening? One mole of water has a mass of 18 g.

Q. A car is traveling 72.0 km/h when the driver applies the brakes. If if the car slows down uniformly with an acceleration of -4.5 m/s2, how far does the car travel before coming to rest?

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