Scientists have spotted a large space debris orbiting the Earth at an altitude of 13,000 nautical miles above the surface. Given that 1 nautical mile = 1.852 km, the mass of the Earth is 5.97 × 10²⁴ kg, the radius of the Earth is 6370 km, and the gravitational constant G = 6.67 × 10^-11 Nm²/kg², find the speed of the space debris.