Which of the Following Statements About Matter- Antimatter Engines Is

question 88

Multiple Choice

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

• A)Matter- antimatter engines would be possible in theory, but to date, we have no evidence that antimatter exists.
• B)One of the major challenges to developing matter- antimatter engines is finding a way to produce enough antimatter.
• C)Matter- antimatter reactions represent the most efficient reactions possible in terms of energy release.
• D)Spacecraft powered by matter- antimatter engines could probably reach speeds of 90 percent of the speed of light.
• E)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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