5. A student dribbles his soccer ball down the hallway before practice. He dribbles it with a force of 7N for 13m with 1.75N of friction from the carpet acting on it. What is the soccer balls final kinetic energy?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.