You do 185 j of work pulling a cart up a ramp. if the ramp does 153 j of work, what is the efficiency of the ramp? 82.7 percent 121.0 percent 32.0 percent 338.0 percent 40 pts to correct answer

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B/2    121.0 percent/ 121.0% is your answer love!

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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.