QUESTION 3 A larger box slides across a frictionless surface and collides with and sticks to a smaller, stationary mass as shown in the illustration.
Because momentum is conserved, the final velocity of the two boxes together would be closest to which of the following?
O 1.2 m/s

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.