Assume that the annual US power consumption is 2 x 1020 Joules:
a) If this energy could be supplied by combining pure matter and antimatter, calculate the total mass (antimatter + matter) that would be required to power the US for 1 year.
b) Gasoline has an energy density of 3.4 x 107 Joules per litre. How many litres of gasoline would be required to power the US for 1 year?
c) Gasoline has a density of 0.75 kg per litre. Compare the mass of gasoline that would be require to power the US for 1 year with the mass of matter + antimatter.
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