Although most people think of silicon as the main ingredient in silicon chips that have fueled the electronic age, what was it’s main use for hundreds of years before this?

the force required to move the cart is divided by three or 33.33 n.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )