A solar-powered vehicle developed at Massachusetts Institute of Technology can reach an average speed of 60.0 km/h. Due to the presence of Earth’s magnetic field, a
magnetic force acts on the electrons that move through the car’s circuitry. Suppose an
electron moves at 60.0 km/h perpendicular to Earth’s magnetic field. If a 2.0 x 10x22
N force acts on the electron, what is the magnetic field strength at that location?

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?