I don’t understand what I did wrong. Could you please explain why it’s 32W/m^2? Question 16...
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 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 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 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 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)...
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...
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...
O yes QUESTION 2 A wave has period of 20 s. The frequency is Hz. QUESTION 3 A wave has frequency of 200 Hz. The period is s QUESTION 4 A rope wave travels at 20 m /s with a frequency of 4 Hz. The wavelength ism. Click Save and Submit to save and submit. Click Save All Answers to save all answers. /shsu blackboard.com/webapps/assessment/take/aunch.jsp?course assessment id- 220022 18course id- 118791.18 v Question Completion Status: QUESTIONS A rope wave has...
Question 2 A typical FM radio wave has a wavelength of 3.0 m. What is the frequency of the wave? O a. 100.0 MHZ b. 1000.0 Hz O c. 10.0 KHz O d. 100.0 KHz Moving to another question will save this response. Question 5 of 14 Question 5 3 points Save Answer What is the intensity of an electromagnetic wave with a peak electric field strength of 100.0 V/m and magnetic field strength of 2.0 x 10^-6 T? a....
i answered this question incorrectly, can someone please
explain what I did wrong? thank you
6. Use the equation to answer the following questions (equation 2) Equation 2: + Fe(OH)3 MM 106.37m → H2SO4 MM-9.08g/m del Fe () M H2O M a. If you react 2.530g of Fe(OH)with 3.32ml of H 50., what is the limiting reagent assuming your desired product is Fea(SO) (show all work)? - (Don't worry about the sig figs, just make sure all of your final...