A Particle (Q = 3

question 25

Multiple Choice

A particle (q = 3.0 mC, m = 20 g) has a speed of 20 m/s when it enters a region where the electric field has a constant magnitude of 80 N/C and a direction which is the same as the velocity of the particle. What is the speed of the particle 3.0 s after it enters this region?

• A) 68 m/s
• B) 44 m/s
• C) 56 m/s
• D) 80 m/s
• E) 36 m/s

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Definitions:

Operating Income

Income generated from normal business operations, excluding costs and expenses.

Manufacturing Margin

The difference between the cost of production and the selling price of manufactured goods.

Contribution Margin

The amount of revenue from sales that exceeds variable costs, contributing to covering fixed costs and generating profit.

Operating Income

The profit realized from a business's operations, calculated by subtracting operating expenses from gross profit.