A Proton Is Moving Perpendicular to a Magnetic Field at 3.0

question 37

Multiple Choice

A proton is moving perpendicular to a magnetic field at 3.0 × 10⁶ m/s and experiences a magnetic force of magnitude 2.5 × 10⁻¹⁶ N. What is the magnitude of the magnetic field?

• A) 0.52 T
• B) 3.8 × 10⁻² T
• C) 1.9 × 10⁻³ T
• D) 2.6 × 10⁻⁴ T
• E) 5.2 × 10⁻⁴ T

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Definitions:

Standard Cost System

A standard cost system is a method of cost accounting that uses estimated costs for materials, labor, and overheads to compare against actual costs incurred, facilitating variance analysis and budgeting.

Actual Results

The real outcomes or data achieved at the end of a specified period, measured against planned or forecasted figures.

Labor Efficiency Variance

A measure used to determine how well labor resources are used, by comparing the standard labor hours supposed to be used to produce goods versus the actual hours used.

Standard Cost System

An accounting system that uses standard costs for cost control and decision-making purposes.