What is the magnitude of the electrostatic force experienced by one elementary charge at a point in an electric field where the electric field strength is 3.0 x 103 newton’s per coulomb? a. 1.0 x 103 N c. 3.0 x 103 N
b. 1.6 x 10-19 N d. 4.8 x 10-16 N

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.