A monorail starts from rest and accelerates at a rate of 2.2 m/s^2 for 10 s. Then it turns at a constant speed for 74 s then slows down at a rate of 1.5 m/s^2

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.

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.