Two students are on a balcony 19.6m above the street. one student throws a ball vertically downward at 14.7 m/s. At the same instant the other student throws a ball vertically upward at the same speed. the second ball just misses the balcony on the way down. a. what is the difference in the time the balls spend in the air?

Amplify and switch electrical power and electronic signals

That big glowy thing in the sky is called the sun

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.