11. Also, the radial distance " r " need not be related to the radius of curvature of the path. 12. The emission distance would be about 4 billion light years, but the co-moving radial distance about 28 billion light years. 13. After identifying both persons as estimating their radial distance then access to the patient's file may be granted without any error. 14. The self-potential on the surface of such a solid of revolution can only depend on the radial distance to the center of mass. 15. The text of the treaty sets out a complex nautical-mile ( radial distance ) semi-enclave around the Italian island of Pantelleria. 16. The expected radial distance is actually 1.5 times the Bohr radius, as a result of the long tail of the radial wave function. 17. Where \ mu = GM is the standard gravitational parameter of the massive body with mass M and r is the radial distance from its center. 18. In N \, dimensions, the probability of moving a radial distance r \, is related to the Chi distribution, and is given by 19. It is also convenient, in many contexts, to allow negative radial distances , with the convention that is equivalent to for any,, and. 20. The radial distance can be computed from the altitude by adding the mean radius of the planet's reference surface, which is approximately for Earth.