1.) How do you determine which between the two object has a greater amount of potential energy? 2.) How was potential energy changed into kinetic energy?

3.) What was the position or condition of the materials that possess kinetic energy?

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill