The Royal Gorge Bridge in Colorado rises above the Arkansas River. Suppose you kick a rock horizontally off the bridge. The rock is traveling horizontally at 5.56 m/s and has a horizontal displacement of 45.0 m. What is the height of the bridge?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery