Which of the following makes a good electrical insulator? why? a. glass, because it is slippery and smooth. b. glass, copper and wood, because electrons move freely inside them. c. glass, wood and plastic because electrons cannot move freely inside them. d. copper because it is metal.

An aircraft performs a maneuver called an "aileron roll." during this maneuver, the plane turns like a screw as it maintains a straight flight path, which sets the wings in circular motion. if it takes it 35 s to complete the circle and the wingspan of the plane is 11 m, what is the acceleration of the wing tip

Atomic nuclei of almost all elements consist of

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?