When a car drives through the Earth's magnetic field, an emf is induced in its vertical 72.0cm -long radio antenna.
If the Earth's field (5.0×10-5 T) points north with a dip angle of 47 degrees, what is the maximum emf induced in the antenna and which direction(s) will the car be moving to produce this maximum value? The car's speed is 24.0m/s on a horizontal road.
Express your answer using two significant figures.