CollegePhysics2e-SSM-Ch17

Direction: Show the complete solution for the following problems. Use a clean sheet of paper in answering. 1. The hearing range of a normal human ear is from 20 to 20000 Hz. If the speed of the sound in air is 340 m/s, what are the shortest and the longest wavelengths that the human ear can hear? 2. If the speed of wave in passing from medium A to medium B doubles while keeping the frequency constant, what happens to the wavelength? 3. Suppose that two-point charges, each with a charge of +1.00 Coulomb are separated by a distance of 1.00 meter. Determine the magnitude of the electrical force of repulsion between them.

Jeremiah was investigating different aspects of sound waves. He listened to two sounds. Sound 1 had a lower pitch than Sound 2. Based on this information, how was Sound Wave 1 different from Sound Wave 2? O A. Sound Wave 1 had a smaller amplitude than Sound Wave 2. B. Sound Wave 1 had a shorter wavelength than Sound Wave 2. C. Sound Wave 1 had a slower speed than Sound Wave 2. D. Sound Wave 1 had a lower frequency than Sound Wave 2.

Calculate the wavelength in air at 20 degrees C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s. a.) Calculate the wavelength of a 20 Hz wave. b.) Calculate the wavelength of a 20,000 Hz wave. c.) What is the wavelength of a 22 MHz ultrasonic wave appropriate?

In an attempt to find the frequency of a wave is drawn, the time base was set to 5 ms per division and a trace of the waveform is as shown. What is the frequency? O A. 16.7 Hz O B. 33.3 Hz O C. 50.0 Hz O D. 100 Hz

Solve the following. Round off your answers to two decimal places.   You are approaching a stationary sound of 1000Hz at 35 m/s. 1.What is the frequency of the sound as you approach the source? 2.What is the frequency of the sound as you pass the source? 3.What is the change in frequency as you pass the source?

What's the answer?

PLEASE HELP FAST ON QUESTION 7 AND 8

What is the frequency of a wave which has a period of57500 s?2.A.0.00001386 HzD.0.00001908 HzB.0.00001739 HzE.0.00001775 HzC.0.00002115 HzF.0.00001999 Hz

Movies a... Bb Cassia County Scho.. Sbius ctory Applied Physics I: Section 4 (F21) W14 Individual Exercises Individual Exercises estion 1 What is the speed of sound in air at at temperature of 25.3 degC? Number Units I Do? Qu Submit Assignment

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The horn of a train has a frequency of250 Hz. If the train is moving away from you at18 m/s, then whatfrequency (in Hz) do you hear? Assume the speed of sound is343 m/s.4.A.282.8 HzD.237.5 HzB.187.1 HzE.222.4 HzC.184.0 HzF.278.9 Hz

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Suppose a wave has a frequency of 300 kHz. How long does one complete cycle take? a. 1.3 second b. 3.33 millisecond c. 1/3000 second d. 3.33 microsecond

DEPTH OF SEAFLOOR. Sound was sent from a surface of an ocean by a ship. After 5.33 s, the reflected sound was heard. What is the depth of the seafloor? Take the speed of sound in seawater to be 1.50 km/s. 2.0 km. 4.0 km. 8.0 km. 9.0 km. 11 km.

Question 5 Ultrasound with a frequency of 4070262 Hz can be used to produce images of the human body. If the speed of sound in the body is the same as in saltwater, 4346 m/s, what is the length of a 4070262-Hz pressure wave in the body? No need to include the unit. Write your answer in scientific notation. (1.11e+1) Round your answer to 2 decimal places.

om/public/activity/6001004/assessment G Google Redirecting... GM Mail G Images M Wrigley Zearn Math: A Com. 1 6.1.4 Qulz Wave Interactions Question 10 of 10 Which pair of waves could overlap to produce a wave with a higher amplitude through interference? A. Two waves of different amplitudes that are also different types of waves B. Two waves of different amplitudes with crests that overlap troughs C. Two waves of the same amplitude with crests that are perfectly aligned D. Two waves of the same amplitude with crests that overlap troughs SUBMIT E PREVIQUS

Item 9 Learning Goal: To learn the properties of logarithms and how to manipulate them when solving sound problems. The intensity of sound is the power of the sound waves divided by the area. on which they are incident. Intensity is measured in watts per square meter, or W/m². The human ear can detect a remarkable range of sound intensities. The quietest sound that we can hear has an intensity of 10-12 W/m², and we begin to feel pain when the intensity reaches 1 W/m². Since the intensities that matter to people in everyday life cover a range of 12 orders of magnitude, intensities are usually converted to a logarithmic scale called the sound intensity level 3, which is measured in decibels (dB). For a given sound intensity I, B is found from the equation B = (10 dB) log (1) where Io = 1.0 × 10-12 W/m². Part A What is the value of log (1,000,000)? Express your answer as an integer. ► View Available Hint(s) The logarithm of x, written log(x), tells you the power to which you would raise…

Dashboard / My courses / PHYS1211 / Section 12 - Mr. Maroof / Quiz 1-Section 12 Question 1 The diagram below represents a wave Not yet answered 0.20 m Marked out of 1.00 P Flag question 0 20 m 6.0 m What is the speed of the wave if its frequency is 8.0 hertz? O a. 3.2 m/s O b. 48 m/s O c 1.6 m/s O d. 16 m/s Window ENG d0) E A 15 16 17 米 米 4+ 24 4. & 7 V #3 3 W T Y 16

1. The state highway patrol radar guns use a frequency of 9.05 GHz. If you're approaching a speed trap driving 31.3 m/s, what frequency shift will your FuzzFoiler 2000 radar detector see? 2. The radar gun measures the frequency of the radar pulse echoing off your car. By what percentage is the measured frequency different from the original frequency? (Enter a positive number for a frequency increase, negative for a decrease. Just enter a number, without a percent sign.)

The highest frequency sound humans can hear is about 20,000 HzHz. 1. What is the wavelength of sound in air at this frequency? 2. What is the wavelength of the lowest sounds we can hear, about 20 HzHz?

What is the range of frequencies that humans are capable of hearing? a. 20 Hz to 20000 Hz b. 20 Hz to 200000 Hz C. 2 Hz to 2000 Hz d. 2 Hz to 50000 Hz

What does a frequency of 100 Hz indicate for a given wave? A. One wavelength will pass by any given observation point every 100 seconds B 100 wavelengths will pass any given observation point in one second C. 100 wavelengths will pass any given observation point every 100 seconds

m/public/activity/6004002/assessment Google Redirecting... G. M Mail G Images M Wrie Zearn Math: A Com. 1 6.4.2 Teat (CST): Waves Question 1 of 13 A student rings a brass bell with a frequency of 100 Hz. The sound wave travels through brass, air, and glass. What is the wavelength of the wave in brass? Wave speed (m/s) Medium Brass 4,700 Air 346 Glass 5,640 A. 47 m B. 4.7 m C. 0.021 m D. 0.21 m PREVIOUS

What I know  7. A fire truck is moving at a fairly high speed, with its siren emitting sound at a specific pitch. As the fire truck recedes from you which of the following characteristics of the sound wave from the siren will have a smaller measured value for you than for a fireman in the truck? A. frequency and wavelength B. frequency and intensity C. wavelength and intensity D. wavelength and speed

Please answer both questions For question 5 only answer part b and c

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Which  of the following statements are true? Which one or more? a.   The factors which affect speech intelligibility include noise, the available frequency range and peak clipping. b.   Understanding speech requires signal to noise ratios greater than 12 dB. c.   Transmission systems, such as telephone lines, generally pass the full range of speech frequencies.   d.   Continuous noise masks speech more than intermittent noise does.

Answer 6-10. It is easy to answer all. Thanks

6. You're trying to tune a piano. You sound a 440.0 Hz tone and you hear a 5.0 Hz beat frequency when that tone is mixed with the sound of the piano key. What are the possible frequencies of the piano key's sound?

SOLVE STEP BY STEP IN DIGITAL FORMAT 14. Two planes move as shown in the figure. Calculate the frequency heard by the aviator of airplane A, when: DOPPLER EFFECT a) Both approach in the same direction. b) Both move away in different directions. B. 1= 2000 Hz V = 500 km/h T= -12°C 16 = ? V= 700 km/h 0

1. The sound of a mosquito is produced when it beats its wings at an a verage of 600 beats per second. What is the frequency of the sound waves? Assuming that the speed of sound is 343 m/s, what is the wavelength of the sound waves?   2. If a wave generator produces 10 pulses per second and the speed of the waves is 300 m/s, what is the wavelength of the waves? What happens to the wavelength if the frequency of the pulses is increased?

PLEASE HELP FAST ON QUESTION 7 AND 8