Question

please I need your help understanding this please make it clear as you possible as you can.

4. The rocket that launches this satellite burns fuel which releases 42.8 MJ joules per kg of combusted material. What mass of fuel is needed for lifting the satellite's mass to orbit? 5. Explain why more fuel is needed than in question 4 for a real launch system overcoming air resistance is only a small part of this additional energy need) Early liquid-fuelled rockets, such as the their propellant gases.

Answer 1

"Total emungy 。 Kime ti emetqy 2 UT nom bant (3) GT G1 r1 mouw GnMm 51 2-1

R (R + h 24- ( 6378.1 + วุ000): io 1 J R 376 x 1o Lut mg าร] 10 -3-376 x 10 mr ,千2.8 x10

丄。 าาา 42. 8 x Lo 555 14