Diego is standing 7.0 m North of a pair of adjacent speakers which are facing him. The speakers are coherently producing a frequency of 686 Hz. Diego’s friend, Shalanda, is going to move one of the speakers directly East. How far away from the stationary speaker should Shaland move the other one such that the sound cancels out where

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Strain Gauges

All the components used in civil engineering and mechanical engineering applications undergo deformations due to induced internal stresses under the application of external loads. Under repeated application of loads, there is a high possibility of failure of the components. Hence, periodic monitoring of the components and determination of stresses are very important.