Q:A- Calculate the sound level in dB of a sound intensity 10-8 Wm-2

If a sound with a singular frequency of 534 has an measured intensity of 9.11 x 10-5 w when at a distance of 5.8 m from the source, what is the decibel level when at a distance of 10.6 m from the source?

q31 A sound wave radiates from a speaker in all directions. If the power of the sound source is 400 W, calculate the intensity level in dB of the sound wave 0.8 km from the speaker.   Question 31 options:   A)  77 dB   B)  71 dB   C)  66 dB   D)  83 dB

True or False: The sound level of a wave with intensity 4.0*10-8 W/m2  is calculated as:    10dB log(4.0x10^4)

The source of a sound wave has a power of 5.91macrowatts.if it is a point source A)what is the intensity  If the distance is 1.62m: What is the sound level

1. (a) What is the intensity of a sound that has a level 7.5 dB lower than a 4.10-9 Intensity: W m² (b) What is the intensity of a sound that is 2 dB higher than a 4-10-⁹ Intensity: W m² W m² W m² sound? sound?

What is the decibel level of a sound that has an intensity of 10.4 x 10-5 W/m2? Assume the standard dB level scale where the reference intensity is 1 x 10-12 W/m2

A noise has an intensity of 2.4×10-8 W/m2. If the threshold of human hearing is I0 = 1.0×10-12 W/m2, calculate the sound intensity level in dB. Use two digits of precision for your answer.

The intensity level in decibels is defined as 10 log10(I/I0), where I0 is a reference intensity equal to the human threshold of hearing, 10–12 W/m2. What is the intensity of the threshold of pain, 120 decibels? answer is : 10° W/m2   I'm not sure how they got this answer

A sound wave traveling in 22 °C air has a sound intensity of 25 × 10-3 W/m2   Part (a)  Assuming the density of air at this temperature is 1.19 kg/m3, what is the pressure variation of this sound wave in N/m2? Part (b)  Calculate the sound intensity level in decibels.