A simple pendulum of mass m = 2.00 kg and length L = 0.820 m on planet X, where the value of g is unknown, oscillates with a period T = 1.70 s. What planet is it? Jupiter, g = 24.8 m/s2 Mercury, g = 3.70 m/s2 Neptune, g = 11.2 m/s2 Earth, g = 9.81 m/s2 Venus, g = 8.87 m/s2