A radio message sent from a location on longitude 15°W at 7.00 a.m is received at another location at 2.00 p.m on the same day. What is the longitudinal pos...
A radio message sent from a location on longitude 15°W at 7.00 a.m is received at another location at 2.00 p.m on the same day. What is the longitudinal position of the other location?