Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. as the truck approaches, you hear a tone of 470 hz ; as the truck recedes, you hear a tone of 410 hz . how much time will it take for the truck to get from your position to the fire 5.0 km away, assuming it maintains a constant speed?
express your answer using two significant figures

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.

Two cars collide, lock bumpers and move together after the collision.this collision is known as perfectly inelastic collision.