Calculate the efficiency of the human body if a person eats a hamburger containing 7.4822 kj of energy and the body uses 2021 j of energy for its necessary life processes. A. 3.702%
B. 27.01%
C. 35. 00%
D. 100.0%

This is what a calorimeter is used for simpler ex, to measure calories in food.

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.

I'm pretty sure the answer is c