Which of the following can cause the substance to change phase? select all that apply change in temperature change in mass change of shape change in pressure

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

Explain how a step-down transformer makes electricity safe for use in homes

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.