Theof the cell directs cell activity and acts like the control center.

Astate of matter all that has define volume and can flow is a(n)

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?