Wich element is likely to be the most reactive

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot