If a person speaks with an intensity of 0.701 μ W/m2, what is the sound intensity level in decibels?

The warning tag on a lawn mower states that it produces noise at a level of 99.0 dB. What is this in W/m2?

The lower intensity that a human can hear (which is represented with the symbol I0) is about 1x10-12 W/m2. However, a loud music venue may have sounds that are near 1.0 W/m2 (though sound as this intensity would cause permanent damage to your ears).  Because the human ear can detect frequencies over such a large range of intensities, more often a sound intensity level is used.  This level is defined as: β=10 ⋅ log10 ⋅ I/I0 If a person speaks with an intensity of 4.062 μW/m2, what is the sound intensity level in decibels?

A sound wave at 20° C has pressure amplitude of 2.00 Pa. The density of air is 1.2 Kg/m and the threshold for hearing intensity is 1012 w/m2. The speed of sound in air is 344 m/s. (a) Find the intensity of the sound wave. (b) Find the intensity in decibels.

People with good hearing can perceive sounds as low in level as -9.00 dB at a frequency of 2700 Hz. What is the intensity of this sound in watts per meter squared?

a noise level meter reads the sound level in a room to be 85 dB. What is the intensity of sound in W/m^2?

A typical adult ear has a surface area of 1.36 × 10-3 m2. The sound intensity during a normal conversation is about 3.78 × 10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? number units

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)

Because the human ear is so sensitive to sounds, it can detect very small intensities.  The lower intensity that a human can hear (which is represented with the symbol I0 ) is about 1x10-12 W/m2. However, a loud music venue may have sounds that are near 1.0 W/m2 (though sound as this intensity would cause permanent damage to your ears).  Because the human ear can detect frequencies over such a large range of intensities, more often a sound intensity level is used.  This level is defined as: β=10⋅log10II0   and the unit is dB which stands for deci-bels (or just decibels).  If a person speaks with an intensity of 2.443 μ W/m2, what is the sound intensity level in decibels?  Note: In the space below, please enter you numerical answer.  Do not enter any units.  If you enter units, your answer will be marked as incorrect.

Two sound waves have intensities of 1 times 10 to the -5 W/m2 and 5 times 10 to the -4 W/m2. What is the difference in their intensities levels (db)? I0 = 10 to the -12 W/m2.