A piston, A, as shown at right, has a diameter of 0.64 cm. A second piston, B, has a diameter of 3.8 cm. Determine the force, F, necessary to support the 500.0 N weight
in the absence of friction.

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices