The Longitudinal Displacement of a Mass Element in a Medium

question 29

Multiple Choice

The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = s_m cos (kx - ωt) .Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If s_m = 12 µm, how long does it take an element of air to move from a displacement of 12 µm to a displacement of 0 µm?

• A)0.57 ms
• B)1.1 ms
• C)2.3 ms
• D)3.4 ms
• E)4.6 ms

Recognize factors affecting option pricing such as volatility and time decay.

Learn how to calculate the hedge ratio and its significance in options trading.

Understand the concept of protective puts and how to replicate them with stock and T-bills.

Recognize the significance of risk-free arbitrage opportunities in mispriced options.

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Definitions:

Inventory Days

A financial metric indicating the average number of days a company takes to sell its inventory, reflecting inventory management efficiency.

Net Credit Sales

The total value of sales made on credit, minus returns and allowances, during a specific period.

Average Inventory

A calculation that reflects the average value of inventory over a certain period, often used for financial analysis.

Vertical Analysis

Vertical analysis is a financial analysis method that expresses each line item in a financial statement as a percentage of a base figure from the same statement, facilitating comparison.