You hear a song from your playlist you haven't heard in a while and it warrants you to commence singing. As you are sing, the power of the compression wave you create is approximately 297.02 nW (note, nW is nano-Watts). What is the intensity of this sound as measured by your roommate who is standing 6.04m from you? Please give your answer in units of nW/m2. This unit is not a common one. Usually, the unit would simply be Watts per square-meter (which would be your answer divided by a million!). This goes to show you that are ears are amazingly sensitive to very tiny sound intensities. Note: Intensity was a topic covered in section 11.1, and I will provide the formula: I = P / A where P is the power in units of Watts, and A is the surface area of a sphere of radius "L" (in this problem).

You hear a song from your playlist you haven't heard in a while and it warrants you to commence singing. As you are sing, the power of the compression wave you create is approximately 297.02 nW (note, nW is nano-Watts). What is the intensity of this sound as measured by your roommate who is standing 6.04m from you? Please give your answer in units of nW/m2. This unit is not a common one. Usually, the unit would simply be Watts per square-meter (which would be your answer divided by a million!). This goes to show you that are ears are amazingly sensitive to very tiny sound intensities. Note: Intensity was a topic covered in section 11.1, and I will provide the formula: I = P / A where P is the power in units of Watts, and A is the surface area of a sphere of radius "L" (in this problem).

Similar questions

A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source, the intensity of the sound is 4.2 x 10-³ W/m². What is the total sound power P emitted by the source? P = Number 1 Units
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
Loudness (L), in decibles (dB), of a sound of intensity I is defined to be L=10log( I/I0), where I0=10-12(W/M2) (watts per meter square) is the minimum intensity detectable by the human ear. A.) Find the loudness L, in decibles (dB), of a trombone given the intensity is 1010I0 B.) Find the intensity of a rock concert whose loudness is 115 decibles. C.) What is the NIOSH recommended Exposure Limit (REL) given in dB based on exposures at work 5 days per week?
Chapter 16, Problem 069 Your answer is partially correct. Try again. ES. lem The bellow of a territorial bull hippopotamus is measured at 116 dB above the threshold of hearing. What is the sound intensity? Hint: The threshold of human hearing is Io = 1.00 x 10-12 W/m2. plem %3D blem Number Units W/m^2 ▼ oblem the tolerance is +/-5% oblem roblem SHOW HINT Problem LINK TO TEXT Problem Problem By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Problem Question Attempts: 1 of 6 used SUBMIT ANSWER SAVE FOR LATER Problem Earn Maximum Points available only if you 8:02 PM 4/29/2020 19 e here to search 21 ASL pause break prt sc sysrq f11 f12 insert f8 f9 f10 f4 f5 f6 f7 f2 f3 backspace & %24 80 4 96
A student hears a sound with a power of P = 42 μW. At their distance from the source, the sound has intensity I = 0.71 W/m2. A. Assuming the eardrum is circular, what is the radius of their eardrum, in meters? B. Another student stands in the exact same location, but receives 20% more power from the same source. What is the radius of the second student's eardrums?
Problem #4: What sound intensity level in dB is produced by earphones that create an intensity of 4.00 x 10-2 W/m2? Problem #5: What is the intensity of a sound that has a level 7.00 dB lower than a 4.00 × 10–9 W/m2 sound? Problem #6: What is the intensity of a sound that is 3.00 dB higher than a 4.00 × 10–9 W/m2 sound? Problem #7: If a large housefly 3.0 m away from you makes a noise of 40.0 dB, what is the noise level of 1000 flies at that distance, assuming interference has a negligible effect?
A sound wave having a frequency of 266 Hz travels through air at 20 °C. The decibel level at a distance of 21.3 m from the source is measured to be 77.4 dB. What is the maximum displacement of air molecules at that location? Assume the density of air is 1.20 kg/m³ and that the source produces spherical wave fronts. Express the displacement as a number having the units of mirco meters. 1 micro meter = 1 x 10-6 m. For example, If your calculated answer were 1.873 x 10-7 m, your entry would be the number 0.187 7.13
Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying ultrasonic sound over the affected area of the body. The sound transducer (generator) is circular with a radius of 1.46 cm, and it produces a sound intensity of 6.53 × 103 W/m2. How much time is required for the transducer to emit 3910 J of sound energy?
You are at BNA (Nashville Airport) watching commercial airliners take off. At a distance of 1,020.6 away from the plane, you record a sound intensity level of 73.4 decibels. If you move such that the new sound intensity level is 88.07 decibels, how far are you away from the plane (in meters)?
You hear a song from your playlist you haven't heard in a while and it warrants you to commence singing. As you are sing, the power of the compression wave you create is approximately 579.05 nW (note, nW is nano-Watts). What is the intensity of this sound as measured by your roommate who is standing 9.89m from you? Please give your answer in units of nW/m2. This unit is not a common one. Usually, the unit would simply be Watts per square-meter (which would be your answer divided by a million!). This goes to show you that are ears are amazingly sensitive to very tiny sound intensities. Note: Intensity was a topic covered in section 11.1, and I will provide the formula: ?=?/?I=P/A where ?P is the power in units of Watts, and ?A is the surface area of a sphere of radius "L" (in this problem).