The total potential and kinetic energy of all the microscopic particles in an object make up its
a. nuclear energy.
b. chemical energy.
c. electric energy.
d. thermal energy.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

What is friction? how does it affect the motion of an object?