Solve the all parts of following problem given below:
Problem: When NASA launches a spacecraft to rendezvous with another planet, the planet's motion during the time of travel must be considered. To successfully travel to Jupiter, the spacecraft must be launched when Jupiter appears to be 720 away from the sun as seen from Earth. The "Astronomical Unit" is defined to be the average distance between the Earth and the Sun. That is, our planet is 1 AU from the Sun. If the distance between the sun and Jupiter is 5.2 Astronomical Units (AU):
Part I: What is the distance between the Earth and Jupiter when the spacecraft is launched?
Part II: What is the angular separation between the Earth and Jupiter as seen from the Sun at the time of launch?
I don't just need an answer, work and explanations/walkthrough would be much appreciated! Thanks.