Suppose a force of 8 N east, a force of 12 N west, and a force of 4 N east acts on a moving object. Try sketching this example on a piece of scrap paper.

Use different colors to model the forces on the object.

What is the net force on the object?
N

Are the forces you modeled balanced or unbalanced? use correct spelling.

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