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The following are questions that involve work, energy, and power and the conservation of energy concepts.Two questions are to follow.Q: The rate at which the United States imports oil, expressed in terms of the energy content of the imported oil, is about 800 GW. Convert this figure to gallons per day.Express your answer using two significant figures.Q:A 70kg engineer leaves her office on the 33rd floor of a skyscraper and takes an elevator up to the 59th floor. Later she descends to street level. The engineer takes the zero of potential energy at street level and the distance from one floor to the next is 3.5m.Please write answers with 2 sig figs.What is the engineer’s potential energy in her office?What is the engineer’s potential energy on the 59th floor?What is the engineer’s potential energy at street level?