A Proton and an Electron Are Accelerated Until Their Total

question 12

Multiple Choice

A proton and an electron are accelerated until their total energy is twice their rest masses. If the rest mass of the proton is M_pc² = 931 MeV and that of the electron is M_ec² = 0.51 MeV, the ratio of the velocity of the electron to that of the proton is

• A) 0.5.
• B) 1.0.
• C) 1.5.
• D) 2.0.
• E) Not enough data are given.

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Individuals or businesses who use or adopt new products, technologies, or innovations before the majority of others do.

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The segment of consumers in the technology adoption lifecycle that adopts a new product just before the average person, usually after seeing evidence that it works from the "early adopters."

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An individual who initiates, organizes, and manages a venture to bring a new product or service to the market, often taking on significant financial risks in the hope of profit.