6. As shown in class, 1. Explain the Cavendish experiment, what was its purpose, how can it also be used to measure electrical interactions and comment on the relative strengths of electrical and gravitational elds 2. Show how the results of the Cavendish experiment was used to determine the mass of the Earth. 3. Given that Earth is 150 billion meters from the Sun and it orbital period about the Sun is one year, determine the mass of the Sun