A Proton Falls Through a Potential Drop of 400 V

question 97

Multiple Choice

A proton falls through a potential drop of 400 V. How much is the change of potential energy of this proton in falling through this potential drop?

• A) 6.4 × 10^-16 J
• B) -6.4 × 10^-16 J
• C) 17 × 10^-16 J
• D) -4000 J
• E) 4000 J

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Definitions:

Pure Play Method

An approach in finance where investments are made in companies that specialize in a single line of business or sector to achieve specific exposure.

Beta

A measure of a stock's volatility in relation to the overall market; a beta above 1 means the stock is more volatile than the market, while below 1 means less.

NPV

Net Present Value is the difference between the present value of cash inflows and the present value of cash outflows over a period of time.

Cost Of Capital

The rate of profit a company should generate from its investments to preserve its value in the market and appeal to investors.