Question

By which fuel rocket is powered??​

Answer 1

Answer:

liquid hydrogen and liquid oxygen have a very high specific impulse and are used for the upper or second stages of a rocket. Dense liquids such as RP-1--similar to kerosene--are sometimes used for the first stage but lack the high specific impulse for use in space.

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Answer 2

Answer:

liquid hydrogen and liquid oxygen have a very high specific impulse and are used for the upper or second stages of a rocket. Dense liquids such as RP-1--similar to kerosene--are sometimes used for the first stage but lack the high specific impulse for use in space