Question: The Richter scale used to measure the intensity level of
The Richter scale, used to measure the intensity level of earthquakes, is a logarithmic scale, as is the decibel scale. Why are such logarithmic scales used?
Answer to relevant QuestionsWhat is the speed of sound in air at (a) 10oC and (b) 20oC? A submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of above the horizontal and the echo took 2.32 s to get back to the submarine. What is the object’s ...Calculate the intensity generated by a 1.0-W point source of sound at a location (a) 3.0 m and (b) 6.0 m from it. The intensity levels of two people holding a conversation are 60 dB and 70 dB, respectively. What is the intensity of the combined sounds? A compact speaker puts out 100 W of sound power. (a) Neglecting losses to the air, at what distance would the sound intensity be at the pain threshold? (b) Neglecting losses to the air, at what distance would the sound ...
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