When one person shouts at a football game, the sound intensity level at the center of the field is 68.4 dB. When all the people shout together, the intensity level increases to 104 dB. Assuming that each person generates the same sound intensity at the center of the field, how many people are at the game?

The intensity level of a sound at a particular location is 110 dB.  Calculate the intensity of the sound in w/m2 at that location. A: 3.0 x 1012 w/m2 B: 1.5 x 1011 w/m2 C: 1.0 x 10-1 w/m2 D: 1.0 x 10-6 w/m2 E: 1.0 x 101.1 w/m2

A source of sound changes, so that it outputs half of its original power.  If the distance between you and the source didn't change, by what factor does the sound intensity you experience change?

The relative intensity of the first harmonic of a sound is 70 dB (1000 Hz). The second harmonic of a sound has the amplitude of a pressure 5 times smaller than that for the first harmonic. What is loudness for the second harmonic if we hear this sound separately?

If a sound with a singular frequency of 580 has an measured intensity of 9.79 x 10-5 w when at a distance of 5.88 m from the source, what is the decibel level when at a distance of 11.9 m from the source?

Figure (a) applies to the spring in a cork gun (Figure (b)); it shows the spring force as a function of the stretch or compression of the spring. The spring is compressed by 7.00 cm and used to propel a 3.90 g cork from the gun. (a) What is the speed of the cork if it is released as the spring passes through its relaxed position? (b) Suppose, instead, that the cork sticks to the spring and stretches it 1.70 cm before separation occurs. What now is the speed of the cork at the time of release? Force (N) 0.4 0.2 -4-2 2 4 -0.2 -0.4 (a) x (cm) Compressed spring. 0 (b) Cork

The sound level measured in a room by a person watching a movie on a home theater system varies from  50 dB  during a quiet part to  90 dB  during a loud part. Approximately how many times louder is the latter sound?

What is the intensity heard a distance of 2.70 m away from a speaker that emits sound in each direction with a power of 35.5 W?

A student sitting in class detects a sound intensity of 6.27×10−76.27×10−7 W/m2 from the teacher speaking. If the power of the teacher's voice is 5.43×10−45.43×10−4 W, how far away is the student from the teacher?