A 0.92 kg soccer ball approaches a player horizontally with a velocity of 14 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 42 m/s. What impulse (1) was delivered to the ball by the player?

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