A sphere of radius 0.28 m is pulsating (radius changing uniformly) at a frequency of 544 Hz. The aCOustic pressure was measured at a distance of 0.5 m from the center of the sphere and found to have a sound pressure of 1.26 Pa. if this sphere is in free-field (away from any reflecting surface), what do you expect the sound pressure to be at 0.91 m. Enter your answer to two decimal points in the form xx.XX.

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Construction Surveys

A construction survey is a survey done on a construction site to mark construction activities and for laying out positions for construction equipment. It includes evaluating and estimating construction activities before the beginning of the project.