A dentist's drill starts from rest. After 1.5 s of constant angular acceleration it turns at a rate of 30,000 rev/min. Find the drill's angular acceleration.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

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