What is the final velocity of an object that starts from rest and travels for 5 seconds at an acceleration of 4.3 m/s2?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

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?