1. The problem statement, all variables and given/known data Saturn’s moon Titan is the only moon in the solar system with an atmosphere, which is 95% nitrogen molecules (N2), similar to Earth’s atmosphere. At Saturn’s distance from the Sun, the temperature of the atmosphere is only 95 K (−180◦ C), and the molecules have an average speed of about 0.4 km/s. How does this speed compare with the speed needed for the molecules to escape from Titan and evaporate into space? Show how you got your answer. (A) 0.01 × Titan’s escape speed (B) 0.07 × Titan’s escape speed (C) 0.15 × Titan’s escape speed (D) 0.5 × Titan’s escape speed (E) 0.95 × Titan’s escape speed 2. Relevant equations Sorry, there are no equations in the text or the notes... the professor simply gave us nothing to work with which is why I'm asking you guys But I looked up online and found the formula for escape speed: Vescape = √(2GM/R), although I don't think it even applies to "atmospheres" since their mass is almost nonexistent 3. The attempt at a solution I know that titan's escape speed is 2.65 km/sec so I divided 0.4 km/s by 2.65 km/sec and got ≈ 0.15 but I obviously need to show my work so how can I come up with Titan's escape velocity so I can compare it to its atmosphere's speed? Thanks in advance.