A Proton Moves $0.10 \mathrm {~m}$ Along the Direction of an Electric Field of Magnitude

question 96

Multiple Choice

A proton moves $0.10 \mathrm {~m}$ along the direction of an electric field of magnitude $3.0 \mathrm {~V} / \mathrm { m }$ . What is the change in kinetic energy of the proton? $\left( e = 1.60 \times 10 ^ { - 19 } \mathrm { C } \right)$

• A) \(3.2 \times 10 ^ { - 20 } \mathrm {~J}\)
• B) \(1.6 \times 10 ^ { - 20 } \mathrm {~J}\)
• C) \(8.0 \times 10 ^ { - 21 } \mathrm {~J}\)
• D) \(4.8 \times 10 ^ { - 20 } \mathrm {~J}\)

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Definitions:

Cash Flow

The overall balance of cash flowing in and out of a business, crucially impacting its quick liquidity.

Creditors

Entities (people or institutions) to whom money is owed by the business for goods or services that have been delivered or used but not yet paid for.

Stockholders

Individuals or entities that own shares in a corporation, giving them ownership interest.

Cash Flow

The entire monetary cycle within and outside a corporation, importantly determining its instant financial stability.