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

question 20

Multiple Choice

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

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

---

Definitions:

Direct Marketing Database

A collection of data about customers or potential customers that is used to tailor marketing strategies directly to the interests of individuals.

Income Tax Rate

The percentage of an individual's or corporation's income that is paid to the government as tax.

Catalog

A comprehensive collection or list of items, especially one systematically arranged, often found in printed form or online for shopping purposes.

Media Usage

The manner and extent to which individuals or organizations use various channels of communication to receive or disseminate information.