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Consider two rocket engines A and B with A having a specific impulse of 242s and B having a specific impulse of 150s. What can be said about their efficiency?

Consider two rocket engines A and B with A having a specific impulse of 242s and B having a specific impulse of 150s. What can be said about their efficiency? Correct Answer A is more efficient than B

Higher specific impulse will result in better efficiency. Rocket A has a higher specific impulse than rocket B. Hence it is more efficient.

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