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A noise meter located at a distance of 30 m from a point source recorded 74 dB. The reading at a distance of 60 m from the point source would be

Residential Construction Academy: House Wiring (MindTap Course List)

4th Edition

ISBN:9781285852225

Author:Gregory W Fletcher

Publisher:Gregory W Fletcher

Chapter19: Service Panel Trim-out

Section: Chapter Questions

Problem 7RQ

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Concept explainers

FEA for Dynamic Problems

Finite element analysis or FEA is a computational tool that evaluates the approximate solution for a particular engineering problem. The tools provided by FEA help to evaluate the solutions of partial differential equations (PDEs) computationally following a numerical approach. Solutions of the PDEs can also be performed by following traditional algebraic approaches, but when the problem gets towards the complex side, it becomes very tedious and almost impossible to arrive at the solutions. In such cases, the FEA fulfills the purpose by evaluating the equations following multiple time steps and iterations. The more the time steps and iterations, the more accurate the solution. The solution plotted by FEA analysis and mathematical approaches varies asymptotically.

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A noise meter located at a distance of 30 m from a point source recorded 74 dB. The reading at a distance of 60 m from the point
source would be

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