A Proton (M = 1

question 48

Multiple Choice

A proton (m = 1.7 × 10⁻²⁷ kg, q = +1.6 × 10⁻¹⁹ C) starts from rest at point A and has a speed of 40 km/s at point B. Only electric forces act on it during this motion. Determine the electric potential difference VB − VA.

• A)+8.5 V
• B)−8.5 V
• C)−4.8 V
• D)+4.8 V
• E)−17 V

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Definitions:

Normal Rate

The standard or average rate at which something occurs, such as interest rates, inflation, or unemployment rates.

Accounting Profit

The net income of a business as calculated by subtracting total expenses from total revenues, according to standard accounting principles.

Economic Profit

The difference between the total revenue generated by a business and the total opportunity costs of all resources used.

Economic Profit

The difference between a firm's total revenue and its total costs, including both explicit and implicit costs, representing excess return over opportunity costs.