Physics Lab 11 (1)

PLEASE HELP FAST ON QUESTION 7 AND 8

Part A and B

Unit 5 - Waves & Sound Salma, who is always in a great mood in the morning, arrives in class singing. If the frequency of the sound waves she is producing is 969 Hz, and the speed of sound in our classroom is 355 m/s, determine: a) The temperature in our classroom. b) The wavelength of the sound waves. c) The length of a closed tube that would produce the second resonant length. Draw the standing wave in the tube!

Calculate the wavelengths in air at 20°C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s. Part A Calculate the wavelength of a 20-Hz wave. Express your answer to two significant figures and include the appropriate units. Alow = Submit Part B Ti μA Value Request Answer Units ΜΑ ? Calculate the wavelength of a 20,000-Hz wave. Express your answer to two significant figures and include the appropriate units. ?

3 Wave properties A sinusoidal wave, graphed above at time t = 0 seconds, travels right with velocity 8.0 m/s. Being sure to specify units... t = 0 y v = 8 m/s -7 m Problem 3.1. What is this wave's amplitude ym? Problem 3.2. What is its wavelength \? Problem 3.3. What is its wavenumber k? 5 m x

Waves in a Pool O While in the pool, you splash water and produce a wave that completes 3 complete cycles in 2 seconds. The pool is 24 meters long. Use the diagram below to help you answer the following questions. The frequency of the waves are type your answer. Hz. Pool Pool Side Side 24 meters

Solve the following problems completely. Include properly-labeled diagrams with complete formulas and equations. I will upvote

physics

Qu 5

Show all working explaining detailly each step. Answer Q48 & 49

1. SKETCH AND TRANSLATE 2. SIMPLIFY AND DIAGRAM   3. REPRESENT MATHEMATICALLY 4. SOLVE AND EVALUATE

A wave has angular frequency 26.0 rad/s and wavelength 1.40 Im. Part A What is its wave number? Express your answer with the appropriate units. HA Value Units Submit Previous Answers Request Answer

q3

Waves in a Pool O While in the pool, you splash water and produce a wave that completes 3 complete cycles in 2 seconds. The pool is 24 meters long. Use the diagram below to help you answer the following questions. The velocity of the waves are type your answer. m/s. Pool Pool Side Side 24 meters

Sound Wave The oscillations in air pressure representing the sound wave for a musi-cal tone can be modeled by the equation y =0.05 sin (500pt + 10p), where y is the sound pressure in pascals after t seconds.a. Sketch the graph of one complete cycle of the sound wave.b. What is the phase?

Please solve and answer the question correctly please also be sure to have the correct units for the final answer. Thank you

A state highway patrol car radar unit uses a frequency of 6.50x10° Hz . Part A What frequency difference will the unit detect from a car receding at a speed of 64.5 m/s from a stationary patrol car? ? Af = Hz Submit Request Answer Provide Feedback

please help.

please solve a , b, c three sub parts

When the Hokee fish migrates from deep Pacific waters to the west coast of North America each summer, the males begin singing their "love song", which some describe as sounding like a low-pitched motorboat. The love song consists of a single note: the A flat (A) three octaves lower than the middle A in the table shown below. This frequency is the same in seawater and air. What is the wavelength of the Hokee fish's song in seawater if the speed of sound in seawater is 1531 m/s? (enter your answer with 4 significant figures) possibly useful: v = Af TABLE 14-3 Chromatic Musical Scale Note Frequency (Hz) Middle C 261.7 C(C-sharp) D (D-flat) 277.2 293.7 D*, E 311.2 E 329.7 349.2 370.0 G 392.0 G*, A 415.3 440.0 A*, B 466.2 493.9 523.3

Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emined by each speaker is 730 Hz. You are standing between the speakers, along the line connecting them and are at a point of constructive interference For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Loudspeaker interference Part A How far must you walk toward speaker B to move to reach the first point of destructive interference? Take the speed of sound to be 344 m/s Express your answer in meters Submit Request Answer 2 11

1. The witch of Agnesi curve shown in red in the diagram below is used to model water waves and the distributions of spectral lines The parametric pair describing what you see is: x = 2a tan(@t) and y= 2a cos²(@t) where a is the radius of the circle and w the angular velocity the circle is "traveling" at. Both a and a are 10 constants. dy y'. Simplify this expression in terms of sin(@t) and cos(@t). d x 1.1 Determine an expression for 1.2 Determine the acceleration vector a for the parametric pair. Simplify your vector in terms of sin(@t) and cos(@t).

Part C. Standing wave in an Air Column Table 3. Copy and paste the table into the box below. You may add more rows to the table if necessary. No. of Cycles Wavelength Air Column Length L Trial Must be in decimal form (m) (m) (ex. 1.00, 1.25, 2.50) 1 2 Edit Viow Incert Format Toole Table

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