What is the energy equivalent of an object with a mass of 1.05 g? 3.15 × 105 j 3.15 × 108 j 9.45 × 1013 j 9.45 × 1016 j

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.