300 Joules of Work was used to lift a dog 2 meters in the air. How much did the dog weigh / N?

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .

Iwould have to say sorry i can't elaborate more. hope this though!

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.