The average power of a human body (for living and metabolism) is about 100 watts. Suppose a 90 kg human body could run on fusion power and could convert 0.6 % of its mass into energy. a) How much energy would be available through fusion?
Express your answer to two significant figures and include the appropriate units.

b) For how long could this body then operate on fusion power?
Express your answer in years to two significant years.