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A Stationary Ship Generates a Sound Signal at the Bow

question 73

Multiple Choice

A stationary ship generates a sound signal at the bow and has a receiver system at the stern of the ship 100 m away.The difference in time between the signal arriving at the stern traveling directly through the air and the signal reflected from the sea bottom is 0.5 second.If the velocity of sound in air is 331 m/s and in water is 1435 m/s,calculate the depth of water below the ship.

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Definitions:

Weak Form

In financial market theory, this term refers to the hypothesis that asset prices fully reflect all historical price information, arguing that past price movements are not predictive of future prices.

Market Efficiency

A concept describing the extent to which stock prices reflect all available, relevant information, making it impossible to consistently achieve higher returns.

Semi-strong Form

A form of the Efficient Market Hypothesis that asserts all public information is reflected in the stock prices.

Market Efficiency

Market efficiency is a concept where all available information is already reflected in asset prices, implying that assets are priced perfectly and it is impossible to "beat the market" through expert stock selection or market timing.