When an oxygen atom forms an ion, it gains two electrons. what is the electrical charge of the oxygen ion?
a.
-1
b.
-2
c.
+2
d.
+1

The force will determine the acceleration.

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.

Describe uniform velocity and variable velocity in short