On the horizon
The altitude of polaris for an observer is always the same as your latitude so it would be 64oN
Your at the equator if you see Polaris at the horizon
Your at the equator if you see Polaris at the horizon
You would face north.
You could order off the Internet,or go to a local dealer.
Plattesburg;)
it would still appear to rotate
It is not visible at or south of the Equator. Theoretically , it would appear on the horizon. Remember the Pole Star is overhead at 90 degree N. (The North Pole). So when you have reached the Equator, your angle has changed by 90 degrees because you are now at 0(zero) degrees. So viewing the sky Polaris (Pole Star) will has now changed its angle by 90 degrees. So from being overhead, a 90 degree angle will be the horizon. You don't see Polaris at the Equator, because of the density of the atmosphere, dust and dirt and moisture in the atmosphere.
Exactly due north of him, and on the horizon.
If you are right at the Equator, you will not be able to see Polaris. If you could, it would be right on the horizon, but ground haze and obstructions would almost certainly hide it from view.
The Prime Meridian is by definition 0 degrees longitude. So that part is a given simply because you're at the Prime Meridian. Polaris is directly over the North axial pole. If you were at the equator, Polaris would be right at the horizon (zero degrees above the horizon). If you moved 10 degrees north, Polaris would appear above the horizon by the same amount. So if Polaris is 50 degrees above the horizon, you must be 50 degrees north of the equator (meaning you're at 50 degrees North latitude).
Full, large or whole. Maybe the question was meant to be...How would the Earth appear to an observer on the moon during a full moon?