Question: Define the specific impulse ( IS ) of a propulsion system in terms of thrust and propellant massflow rate. Is the specific impulse of an

Define the specific impulse (IS) of a propulsion system in terms of thrust and propellant massflow rate. Is the specific impulse of an air-breathing engine greater than or less than that of arocket? Why Do you expect a H2/O2 or Kerosene/O2 rocket to have a higher IS? Why?

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