A harvest mouse can detect sounds as quiet as -10 dBdB. Suppose you are sitting in a field on a very quiet day while a harvest mouse sits nearby. A very gentle breeze causes a leaf 1.1 mm from your head to rustle, generating a faint sound right at the limit of your ability to hear it. The sound of the rustling leaf is also right at the threshold of hearing of the harvest mouse.  How far is the harvest mouse from the leaf?

Q: A noise level meter reads the sound level at the emergency ward to be 85 dB. What is  sound…

A:

Q: Harbor seals, like many animals, determine the direction from which a sound is coming by sensing the…

A: Sound waves travel faster in water than in air. So, the difference in time of arrival of sound in…

Q: A quiet home has a sound intensity of approximately 1.0 x 10-9 W/m2. When my french bulldog, Grey,…

A:

Q: There are 4 identical dogs barking with identical sound intensity levels of 92 dB as measured by a…

A:

Q: You are trying to overhear a juicy conversation, but from your distance of 15.0 m, it sounds like…

A: Solution: Given that distance 1; R1 = 15 m  whisper 1; dB1 = 2 dB sound levelI is the intensity of…

Q: A harvest mouse can detect sounds as quiet as -10 dB. Suppose you are sitting in a field on a very…

A: Given, A harvest mouse can detect sounds as quite as, -10 dB distance, r=2.0 m

Q: You are listening to the radio when one of your favorite songs comes on, so you turn up the volume.…

A: Given Data The sound intensity is increased by 21.0 dB. We have to find the by what factor did the…

Q: You are trying to overhear a juicy conversation, but from your distance of 21.0 m, it sounds like…

A: Write the expression for sound intensity level.

Q: dolphin uses echolocation underwater to “see” its surroundings.  If the speed of sound in the ocean…

A: Find the time taken by the dolphin to hear an echo. ∆t=2dv

Q: You hear a sound of (4.0x10^1) decibels. What is the intensity? Give your answer in microwatts/m2…

A: Given data: Intensity level (β) = 4.0 × 101 dB Threshold of hearing (I0) = 1.0×10-12 W/m2  1 μW =…

Q: A person standing a certain distance from eighteen identical loudspeakers is hearing a sound level…

A: Let the minimum Intensity for audible sound is I0 and that of the sound produced by each loud…

Q: A harvest mouse can detect sounds below the threshold of human hearing, as quiet as -10 dB. Suppose…

A: Given: A harvest mouse can detect sounds below the threshold of human hearing, as quiet as -10 dB.…

Q: A point source emits sound isotropically. The sound intensity is 0.02 W/m² at a distance of 7 m from…

A:

Q: he sound level measured in a room by a person watching a movie on a home theater system varies from…

A: Decible scale is like logarithmic scale L = 10dB log10(I /I0 ) I = INTENSITY

Q: A sound has a certain intensity I1. It suddenly increases to I2 so that I2 = 250I1. What is the…

A: We can calculate sound level β of the sound of intensity I from its definition. β (dB)=10log10II0

Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…

A:

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: As we know that the wavelength is called to be the ratio of the speed of the wave to its frequency.…

Q: Two loudspeakers emit 600 HzHz notes. One speaker sits on the ground. The other speaker is in the…

A:

Q: A harvest mouse can detect sounds below the threshold of human hearing, as quiet as -10 dB. Suppose…

A: Here we have to determine the harvest mouse and the leaf. We are aware that the harvest mouse's…

Q: You are trying to overhear a juicy conversation, but from your distance of 21.0 m, it sounds like…

A:

Q: Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the…

A: The intensity of sound waves can be defined as I=PmaxA.....1Pmax -The maximu power reaching the area…

Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A: Given; Let there be two students A and B.  Both receives the same power from sound wave i.e. PA =…

Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A: Given that First Intensity I1 = 0.79 W/m2 Second intensity I2 = (1.18)(0.79) W/m2 = 1.18I1 Diameter…

Q: In addition to producing images, ultrasound can be used to heat tissues of the body for therapeutic…

A: We have to determine weather the standing waves are created. Given that, L=0.55 cmfm=0.70 MHz

Q: A person perceives a sound that was produced 4 meters from them. How much less intense would the…

A: Intensity of a sound is inversely proportional to the square of the distance from the source.…

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given,        frequency (f) = 51.0 kHz                            =  5.1 * 104 Hz   speed of sound…

Q: Sound intensity D (decibels) is measured relative to the lowest human–detectable sound I0 = 10–12 W…

A: Lowest human detectable sound intensity, I0=10−12 W.m−2Intensity of jet, I=9.5×102 W.m−2

Q: 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…

A: The formula to calculate the difference in sound intensity levels (dB) between two sound waves with…

Q: threshold of hearing has an intensity of 10- 12 W/m^2 (a sound level of 0Db). how much more intense…

A:

Q: bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength…

A: Given Data: The frequency emitted by a bat is: f=7.69×104 Hz The speed of sound in air is: v=343 m/s…

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.