A Charged Particle of Mass 0

question 28

Multiple Choice

A charged particle of mass 0.0020 kg is subjected to a 6.0 T magnetic field which acts at a right angle to its motion. If the particle moves in a circle of radius 0.20 m at a speed of 5.0 m/s, what is the magnitude of the charge on the particle?

• A) 0.0083 C
• B) 120 C
• C) 0.00040 C
• D) 2500 C

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Definitions:

Bailey v. Drexel Furniture Company

A 1922 United States Supreme Court decision that ruled the Child Labor Tax Law of 1919 unconstitutional, which had imposed a tax on companies using child labor.

Child Labor

The employment of children in any work that deprives them of their childhood, interferes with their ability to attend regular school, and that is mentally, physically, socially or morally dangerous and harmful.

Mandatory Retirement

A policy or practice that requires employees to retire at a certain age, regardless of their personal or professional circumstances.

Welfare Capitalism

An approach to labor relations and social welfare in which companies provide benefits like health insurance and retirement plans to their employees to prevent government intervention and unionization.