A satellite is in a circular orbit around Earth at an altitude of 500 km above the surface. Calculate:
1. The orbital velocity of the satellite.
2. The orbital period of the satellite.
Given:
- Radius of Earth, R_E = 6.37 × 10^6 m
- Gravitational constant, G = 6.674 × 10^−11 Nm²/kg²
- Mass of Earth, M_E = 5.97 × 10^24 kg