A balloon rubbed against denim gains a charge of -3.0 uC. What is the electric force between the balloon and the denim when the two are separated by a distance of 6.0 cm? (As- sume that the charges are located at a point.) The value of the Coulomb constant is 8.98755 x 10° Nm²/C2. Include direction of the force. 2

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above