Which of the Following Statements About Matter-Antimatter Engines Is Not

question 48

Multiple Choice

Which of the following statements about matter-antimatter engines is not true?

• A)Matter-antimatter engines would be great in theory,but to date we have no evidence that antimatter even exists.
• B)Matter-antimatter reactions represent the most efficient possible reactions in terms of energy release.
• C)Spacecraft powered by matter-antimatter engines could probably reach speeds of more than half the speed of light.
• D)One of the major challenges to developing matter-antimatter engines is finding a way to store antimatter after it is produced.

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