Question

question 7 of 10 which of these statements is true of rocket flight but not airplane flight? a. it requires combustion reactions to generate thrust. b. it requires air molecules to generate lift. c. it has the ability to create lift in a vacuum. d. it requires a thrust force to overcome gravity.

Explanation:

Airplanes rely on air - airfoil interaction to generate lift and need air molecules. Rockets carry their own oxidizer and can operate in a vacuum, generating thrust through combustion and can create lift in a vacuum. Both rockets and airplanes can use combustion reactions for thrust and require thrust to overcome gravity.

Answer:

C. It has the ability to create lift in a vacuum.