A ball is rolling down a ramp. When the ball is 1.97 m above the ground, it is moving at 1.14 m/s. How fast is it moving when it is 0.630 m above the ground?

It may possibly be c i think |-/

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.

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.