What is the angle between the vectors A =2i +3j and B=i_2j? (120°)

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2