An 80 kg rollercoaster car traveling 10 m/s passes over the crest of a 40 m high hill as shown in the figure. the speed of the car at the bottom of the hill is 24 m/s. the mechanical energy lost to friction is most nearly?

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada