HELP HELP, this should be pretty easy

Where does all of earth’s atmosphere energy come from

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?