Problem 11: Suppose you have a device that extracts energy from ocean waves in direct proportion to their intensity. If the device produces 9.5 kW of power on a day when the waves are 1.3 m high, how many kilowatts will it produce when they are 0.625 m high? Numeric : A numeric value is expected and not an expression. P2 =

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A: The radius of the beam isr=9.3 mm=0.0093 mThe power isP= 4.1 mW = 0.0041 W

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A: Given Launch angle (θ ) = 25° and 35°  For , θ  = 25°   sin25° =0.42  cos25° = 0.91  tan25° = 0.47

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Q: Homework 8, Problem 9:   Suppose you have a device that extracts energy from ocean waves in direct…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

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Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.