Question
I don’t understand what I did wrong. Could you please explain why it’s 32W/m^2?
Question 16 The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m3. If the displacement amplitude of a 440-Hz sound wave is 10 μm, what is the intensity of the wave? 16 W/m2 rrect Answer 32 W/m2 0.32 W/m 12 W/n You Answered :0.16 W/m2 2/2 pts Question 17
0 0
Add a comment Improve this question Transcribed image text
Answer #1

2.7 -6 11-27 fascal 、au, ound ware 2一 2 = (11-27 8 16 0.155 6 = 0-16 wrm.

Add a comment
Know the answer?
Add Answer to:
I don’t understand what I did wrong. Could you please explain why it’s 32W/m^2? Question 16...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • The intesity of a wave is I=2π2ρvf2A2, where ρ is the density of the medium, v...

    The intesity of a wave is I=2π2ρvf2A2, where ρ is the density of the medium, v is the speed of wave, f is the frequency, and A is the amplitude. The density of air is 1.29 kg/m3, the speed of sound in air is 343 m/s, the intensity of the reference level required to determine the sound level is 1.0×10−12W/m2. What would be the sound level (in dB ) of a sound wave in air that corresponds to a displacement...

  • i have some physics questions. please give me ALL CORRECT ANSWERS. thank you Question: The average...

    i have some physics questions. please give me ALL CORRECT ANSWERS. thank you Question: The average power from a sound wave passing through an area of 1.16 m2 at a distance of 4.55 m from a source is 3.63 mW The sound wave is propagating isotropically in three dimensions through a gas with a density of 1.29 kg/m3. The wave has a speed of 330 m/s and a displacement amplitude of 5.39 nm at a distance of 4.55 m from...

  • I don’t understand the question. Please explain what they are asking for and please explain your...

    I don’t understand the question. Please explain what they are asking for and please explain your answer. Thanks for the help! D (cm) 3, Draw the snapshot graph D(x, t = 1.0 s) at t = 1.0 s for the wave shown on the right. (The figure given corresponds to how the amplitude changes at the fixed position x -O m with time. The speed is given (1.0 m/s). You now have to draw D (cm) versus x (m), for...

  • Hey I got this question wrong on my physics test so if you could help me...

    Hey I got this question wrong on my physics test so if you could help me find the right answer and describe how you got it that'd be great. Thanks! 9. At an auto race, a member of the pit crew stands beside the track. A car approaches him at 110 m/s and emits a sound at frequency 1200 Hz. The air is still and the speed of sound is 340 m/s. What frequency will the pit crew member hear?...

  • Hey I got this question wrong on my physics test so if you could help me...

    Hey I got this question wrong on my physics test so if you could help me find the right answer and describe how you got it that'd be great. Thanks! 8. A cyclist is traveling at a constant velocity of 5.00 m/s. The cyclist approaches a stationary musician playing a note of frequency 281 Hz. The air is still and the speed of sound is 340 m/s. What is the frequency of the note that the cyclist hears? (1 point)...

  • Please help with these problems I don’t know what I am doing wrong A sound wave...

    Please help with these problems I don’t know what I am doing wrong A sound wave propagating in air has a frequency of 4.03 kHz. Calculate the change in wavelength when the wave, initia region where T-11.00. 2.55 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. mm I Need...

  • Please help with these questions I don’t know what I am doing wrong Notes Ask Your...

    Please help with these questions I don’t know what I am doing wrong Notes Ask Your A sound wave propagating in air has a frequency of 4.03 kHz. Calculate the change in wavelength when the wave, initially traveling in a region where T 27.0C, enters region where T-11.0°C. Your response differs from the correct answer by more than 10%, Double check your calculations. mm Need Help? ResdN 0/1 points Prevous Answers SerCP10 14 P008 A stone is dropped from rest...

  • Hey I got this question wrong on my physics test so if you could help me...

    Hey I got this question wrong on my physics test so if you could help me find the right answer and describe how you got it that'd be great. Thanks! 1. What is the pressure amplitude for the threshold of human hearing? (1 point) X (0pts) 1.0x 10-12 w/m- O (1pt) 2.0x 10-5 W/m2 O (0pts) 5.0x102 w/m2 O (0pts) 1.2 x 10-10 w/m2 0/1 point

  • Why did my working not work? Where is my  logic wrong The actual solution, Ad=(1/2)(gm)(ro) Question...

    Why did my working not work? Where is my  logic wrong The actual solution, Ad=(1/2)(gm)(ro) Question 3 Determine the differential gain a MOSFET differential amplifier shown in Figure 3 biased by 0.2mA/V, Cx 0.1mA/V2, A = 0.1, VDD 10V and Vss -10V mA, (W/L)1,2=100, (W/L)3,4=2, HnCox a current source of I = VDD M3 Vo M2 V2 M1 V1 Vss Elee3403, Ture 3 fo, o Vour to,sm -m ( Vzs2 m, Jmy Vifa) 2 1ms .-[ 3m, Vinfals Vout Question...

  • Can you please explain all parts I meant to ask this question A block with a...

    Can you please explain all parts I meant to ask this question A block with a speaker bolted to it is connected to a spring having spring constant k = 24.0 N/m and oscillates as shown in the figure below. The total mass of the block and speaker is 3.00 kg, and the amplitude of this unit's motion is 0.500 m. The speaker emits sound waves of frequency 500 Hz. www (a) Determine the highest frequencies heard by the person...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT