(15%) Problem 1: The Earth spins on its axis and also orbits around the Sun. For this problem use the following constants. Mass of the Earth: 5.97 X 1024 kg (assume a uniform mass distribution) Radius of the Earth: 6371 km Distance of Earth from Sun: 149,600,000 km A 50% Part (a) Calculate the rotational kinetic energy of the Earth due to rotation about its axis, in joules' A 50% Part (b) What is the rotational kinetic energy of the Earth due to its orbit around the Sun, in joules? KnO