Particle Accelerators: the Voltage Across the Dees of a Cyclotron

question 57

Multiple Choice

Particle accelerators: The voltage across the dees of a cyclotron is 30,000 V. How many revolutions do the protons go through in reaching a kinetic energy of 21 MeV? (1 eV = 1.60 × 10^-19 J, e = 1.60 × 10^-19 C, m_proton = 1.67 × 10^-27 kg)

• A) 2.0 million
• B) 1400
• C) 700
• D) 350
• E) 35

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Definitions:

Labor

The effort that people contribute to the production of goods and services in an economy, typically measured in terms of hours worked.

Production Function

A mathematical equation that describes the maximum amount of output that can be produced from a given set of inputs.

Labor Input

This denotes the amount of work effort, measured in hours or the number of employees, used in the production of goods and services.

Techniques of Production

The various methods and technologies used in the process of producing goods and services.