I need help identifying equations and trying to start these problems. Thanks... 1.) If Jupiter has an average temperature of 125 K, at what wavelength is it emitting the most energy according to Wien's Law? 2.) If a new planet is discovered beyond the orbit of Neptune which has a radius three times Earth's radius and a densiy of 1.2 g/cc, what is the mass of the new planet in terms of Earth's mass? 3.) If Phobos had a semimajor axis of 29,000 km and Mars has a mass of 0.16 M(lowered E), what would be its period around Mars in hours? Be careful with your units here! 4.) If Jupiter were really 7.52 AU from the Sun instead of 5.20 AU, what would the affect be on the energy it gets from the Sun? What would be the affect on its appearence (size and brightness) from Earth? Careful, these are two different questions! 5.) If the size of a new Kuiper object is 0.0150 arc sec in angular size as seen from a distance of 42.00 AU, what is the true diameter? If it has a satellite with a period of 5.50 hours at a semimajor axis of 12500.0 km, what is the mass? What is the resulting density? What do you think it is composed of?