Suppose the purr of a cat has a sound intensity that is 340 times greater than the threshold level. Find the decibel value for this cat's purr. Round to the nearest decibel.

Select the correct answer from the drop-down menu.The formula 𝛽=10⁢log⁡(𝐼𝐼0) is used to find the sound level, 𝛽 , in decibels (dB), of a sound with an intensity of I. In the formula, 𝐼0 represents the smallest sound intensity that can be heard by the human ear (approximately 10-12watts/meter2 ).The sound level on a busy street is 70 dB. What is the sound intensity on the street?The sound intensity on the busy street is watts/meter2 .

When a pin is dropped onto a surface, the sound is approximately 11 decibels. How many times greater than the threshold sound level is the sound of a pin drop? Round to the nearest whole number.

In the afternoon, the decibel level of a busy freeway is 89 dB with 90 cars passing a given point every minute. Late at night, the traffic flow is only 5 cars per minute. What is the late-night decibel level?Select one:a.76 dBb.​9 dBc.176 dBd.89 dBe.205 dB

Decibels measure sound(a) intensity(b) frequency(c) loudness level(d) all of the above (8.5)

The sound of a bird singing is given as 5 dB. What is the intensity of the sound of a bird singing?