The magnetic field is uniform over each face of the box shown in (Figure 1). Suppose B1 = 2 T, B2 = 5 T.

Part A
What is the magnetic field strength on the front surface?
Express your answer with the appropriate units.

Part B
What is the magnetic field direction on the front surface?
Parallel to the front surface.
Out of the front surface, perpendicular to it.
Into the front surface, perpendicular to it.