A spy satellite uses a telescope with a 2.0-m-diameter mirror. It orbits the earth at a height of \(220 \mathrm{~km}\). What minimum spacing must there be between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope? Assume the telescope's resolution is limited only by diffraction and that it is recording light with a wavelength of \(500 \mathrm{~nm}\).