#### Answer

The bearing can be expressed as $90^{\circ}$
The bearing can be expressed as $N~90^{\circ}~E$ or $S~90^{\circ}~E$

#### Work Step by Step

The point (5,0) is located directly to the east from the radar station at the origin.
The bearing can be expressed as $90^{\circ}$. This means the bearing is $90^{\circ}$ clockwise from due north.
The bearing can be expressed as $N~90^{\circ}~E$, which means the bearing is $90^{\circ}$ clockwise from due north. The bearing can also be expressed as $S~90^{\circ}~E$, which means the bearing is $90^{\circ}$ counterclockwise from due south.