PART A: What is the reaction energy Q of this reaction? Use c2=931

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PART A: What is the reaction energy Q of this reaction? Use c2=931.5MeV/u.

PART B: Using fission, what mass m of uranium-235 would be necessary to supply all of the energy that the United States uses in a year, roughly 1.01019J?

Express your answer in kilograms to two significant figures.