The Magnetron of a Microwave Oven Generates a Frequency of 2.45

question 27

Multiple Choice

The magnetron of a microwave oven generates a frequency of 2.45 GHz. This frequency corresponds to the first vibrational level, , of a water molecule. Assuming that the energy is given by , the moment of inertia of the water molecule is

• A) 7.81 * 10^-46 kg.m²
• B) 3.23 * 10^-45 kg.m²
• C) 1.37 *10^-45 kg.m²
• D) 3.44 * 10^-45 kg.m²
• E) 6.85 * 10^-45 kg.m²

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Definitions:

Return on Assets (ROA)

A financial ratio indicating how profitable a company is relative to its total assets, calculated as net income divided by total assets.

Discounted Payback

The period of time it takes for the cash flows from an investment to equal the initial cost of the investment, accounting for the time value of money.

Rate of Return

The improvement or reduction in the value of an investment within a specified interval, articulated as a percentage of the investment’s first cost.

Cash Inflow

Money coming into a business or project from various sources, including sales, investments, and financing activities.