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2. The point of the previous problem is to make some simple approximations that are based on

practical knowledge to enable comparisons between energy expenditures that are on a human

scale, at an automobile scale, and at a nationwide scale. Write your own multi-part homework

problem that makes a comparison between different usages and scales of energy by asking the

problem-solver to make approximations and simple engineering calculations. Be creative.

Provide your own solution the problem, clearly explaining how you came up with the

approximations you chose.