Calculate the wavelengths in air at 20°C for soundsin the maximum range of human hearing. Thespeed of sound in air is 343 m/s.Part ACalculate the wavelength of a 20-Hz wave.Express your answer to two significant figures and include the appropriate units.Alow =SubmitPart BTiμAValueRequest AnswerUnitsΜΑ?Calculate the wavelength of a 20,000-Hz wave.Express your answer to two significant figures and include the appropriate units.? Part CWhat is the wavelength of a 22-MHz ultrasonic wave?Express your answer to two significant figures and include the appropriate units.Aultrasonic =Submit0μᾶValueRequest AnswerUnits

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1. a) Using the diagram below, determine the wavelength and amplitude of the sound wave below. b) If the wave speed was given as v = 340 m/s, what is the frequency (Hz) of this wave? c) Is the frequency in the audible range? 2. A pendulum oscillates 21 times in 30 seconds. a. What is the frequency of the pendulum’s oscillations ?b. What is the period of the pendulum’s oscillations ? c. What is the length of the pendulum?( Round answer to the nearest centimeter) 3. A pendulum is 0.65 meters long. a) What is the period of oscillation? b) What is the frequency of its oscillations? Round to the nearest hundredth. 4. A water wave has a frequency of 2 Hz, and there are 5 meters between each crest on the wave. a) How fast is the wave moving? b) What is the period of the wave? 5. Sound waves travel at roughly 340 m/s at room temperature. The minimum hearing range of a human is 20Hz. a) What is the wavelength of this wave? b) Could this wavelength fit inside the dimensions of Room 411(…
I ran track in high school. Sometimes spectators would time the races from the stands. Let's say that the spectator is a distance, d, from the starter. The spectator (erroneously) starts their timer when they hear the sound from the starting gun. They should start the timer when they see the smoke from the starting gun.Who can calculate the timing error Δt in terms of d, the speed of sound (vs) and the speed of light (c)? I calculated 6.7 x 10^-7, with speed of sound = 343 m/s and speed of light = c. I just wanted to confirm if I was correct. I used x = x0 + 1/2 (v0 +v)(t).
The figure shows two snapshot graphs taken 10 ms apart, with the blue curve being the first snapshot. Part A What is the wavelength of this wave? Express your answer in centimeters to two significant figures. Part B What is the speed of this wave? Express your answer in meters per second to two significant figures. Part C What is the frequency of this wave? Express your answer in hertz to two significant figures. Part D What is the amplitude of this wave?Express your answer in millimeters to two significant figures.
The intensity of electromagnetic waves from the sun is 1.4 kW/m² just above the earth's atmosphere. Eighty percent of this reaches the surface at noon on a clear summer day. Suppose you think of your back as a 33.0 cm x 50.0 cm rectangle. Part A How many joules of solar energy fall on your back as you work on your tan for 0.900 hr? Express your answer with the appropriate units. μA Value Submit Units Request Answer ?
The figure shows the circular wave fronts emitted by two sources, the wavelength for both idential waves is 1.4 m. What is the path-length difference at point Q, in meters? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A baseball park is filled with 4400 home-team fans. In the bottom of the ninth inning, the home team's leading batter hits a game winning home run and all 4400 fans stand and cheer. Assume that each individual fan produces a sound intensity of 10- W/m2 , as heard from the pitching mound. Part A What is the total sound intensity heard at the pitching mound? Express your answer in watts per meter squared. W/m? Submit Request Answer Part B What is the total sound intensity level at the pitching mound? Express your answer in decibels. ? dB Submit Request Answer
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A 1.0-m-tall vertical tube is filled with 20°C water. A tuning fork vibrating at 580 Hz is held just over the top of the tube as the water is slowly drained from the bottom. Part A At what water heights, measured from the bottom of the tube, will there be a standing wave in the tube above the water? Express your answer in meters. If there is more than one answer, enter your answers in descending order separated by commas. h = Submit 15. ΑΣΦ ΑΣΦΑ Request Answer Como ? m
Calculate the frequency of a water wave that has a wavelength of o.5 m and a speed of 4 m/s. You must show correct mathematical work, as well as a correct numerical answer in order to receive full credit. C-wave speed F-frequency -wavelength
Need help with part C, please!

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