Adonkey pulls a cart of mass 250 kg east across a rough road. the donkey pulls the cart with a force of 300n t. the total frictional force on the cart is 50n calculate the resultant force on the cart the acceleration on the cart

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