[TEA_T5_2025-26] SPH ...

5.1: pg227. #2, 3, 5, 6 (do some research), 7, 11        
       5.1 Solution

5.2: pg231. if you are interested, do some research on "Rocket Propulsion" and share with the class. 
        pg232. Read summary and work on #1, 3, 6, 7
        5.2 Solution