James and Doug decide to move a 100. kg box along a rough floor. Doug pushes down at an angle on the box with a force of 100. N but the box does not slide. James pulls up on the box with the same force and angel and the box moves! Explain why the box moved for James but not for Doug using physics and common sense.

Rain is pulled by gravity which is a non contact force

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.