In __, the amplitude of the carrier wave is changed to transmit information; the frequency is not changed. In __, the frequency of the carrier wave is changed __ phones and __ phones use radio waves to transmit signals. __

21,062 results
  1. Math

    1. Compared to wave A, wave B has a _____. D. longer wavelength and lower frequency 2. When drawn on a coordinate plane with the x-axis as the baseline, a wave with a crest that is closer to the baseline has a smaller _____. B. Amplitude. 3. The table

  2. Physics

    Two sound waves are traveling through a container of unknown gas. Wave A has a wavelength of 1.2 m. Wave B has a wavelength of 3.6 m. The frequency of wave B must be __________ the frequency of wave A. a. one-ninth b. one-third c. the same as d. three

  3. Physics

    The wave function of a standing wave is y(x,t)=4.44mmsin[(32.5rad/m)x]sin[(754rad/s)t]. A. For the two traveling waves that make up this standing wave, find the amplitude. B. For the two traveling waves that make up this standing wave, find the wavelength.

  4. Science

    9. FM signals travel as changes in (1 point) A.the speed of the wave. B.the amplitude of the wave. C.the frequency of the wave.*** D.the loudness of the wave.

  5. Physical science

    the crest of wave A has an amplitude of 5 cm. the trough of wave B has an amplitude of 2 cm. if the crest of wave A combines with the trough of wave B,what will be the amplitude of the resulting wave? will the waves form a crest or a trough when they

  6. Physics

    A transverse wave is formed on a long skipping rope. The equation of the transverse wave is y=5.50 sin(0.031π x+5.52π t) where x and y are in centimeters, t is in seconds, and Π is pi (3.14..). Find the amplitude of the wave? what is the wavelength of

  7. Science

    Which of the following affects the speed of sound? A. The amplitude of the wave. B. The frequency of the wave. C. The phase of the medium. D. The wavelength. Is the answer D? Thank you

  8. science

    ANSWER THESE AND ONCE I AM DONE I WILL POST THE CORRECT ONES FOR ALL OF THEMM... Which type of electromagnetic energy must be used carefully in medicine so it does not damage living tissue?(1 point) radio waves low frequency waves gamma rays visible light

  9. Science--HELP!!

    1. In which of the following situations is a sound wave most likely to travel through air? A) An alarm clock rings in a vacuum. B) A giant star explodes. C) A grasshopper eats a leaf. D) An astronaut uses tools in space. 2. Which of the following factors

  10. Science/Properties of wave QuickCheck

    1. (What does the value 0.5 cm represent for the wave?) 1. Answer; amplitude 2. (Two students hold the ends of a jump rope. One student moves the jump rope up and down, making a wave. Then, the student moves it faster. Which quantity of the wave will

  11. Physics

    Two waves traveling on a string in the same direction both have a frequency of 150 Hz, a wavelength of 2 cm, and an amplitude of 0.06 m. What is the amplitude of the resultant wave if the original waves differ in phase by each of the following values? (a)

  12. Science

    What wave property is labeled X? a. Frequency b. amplitude c. wavelength d. wave speed Is it C? Thank you!

  13. physics

    A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 32.0 m/s. a) What is the amplitude if the maximum displacement is 28.0 cm and the total distance travelled by the wave is 26.0 m? b)What is the wavelength of the wave?

  14. Physics Helpppp

    Q11 a(ii)A sinusoidal carrier wave has frequency 500 kHz and amplitude 6.0 V. It is to be frequency modulated by a sinusoidal wave of frequency 8 kHz and amplitude 1.5 V. The frequency deviation of the carrier wave is 20 kHz V^–1 Describe, for the

  15. physics

    The number of times a wave vibrates per second is called: A. frequency B. period C. wavelength D. amplitude E. rarefaction This is frequency right? (A)

  16. physics (please help)

    Two identical but separate strings, with the same tension, carry sinusoidal waves with the same frequency. Wave A has an amplitude that is twice that of wave B and transmits energy at a rate that is _____ that of wave B. a)half b)twice c) one-fourth d)four

  17. physics question

    What factors affect the frequency of a wave? A. the amplitude B. the energy of the wave C. the wavelength of the wave D. the material through which it travels E. the velocity of the wave I said C,D, and E. Should there be anything else?

  18. Physical Science

    1. To what is amplitude related? B. the maximum displacement from the rest position C. neither A nor B D. both A and B 2. Suppose two waves collide and the temporary combined wave that results is smaller than the original waves. What term best describes

  19. physics

    2)A wave is represented by the equation y =2sin.pi(0.5x - 200t) where all distance are measured in centimeters and time in seconds. For this wave, calculate the : (a) frequency (b) wave length (c) speed (d) amplitude step plz

  20. College Physics

    A certain transverse wave is described by the equation y(x,t) = (6.50 mm)sin2pi((t/0.0360 s)-(x/0.280m)) Determine the wave's (a) amplitude (b) wavelength (c) frequency (d) speed of propagation and (e) direction of propagation

  21. Algebra 2

    The frequency of a radio wave is inversely proportional to the wavelength. If a wave 250 m long has a frequency of about 1200 kHz, what is the approximate length of a wave with a frequency of 800 kHz? A. 167 m B. 258 m C. 325 m D. 375 m

  22. physics concept

    1.How many vibrations per second are represented in a radio wave of 101.7 MHz 2.The speed of a wave on a string depends on: a.the material properties of the string b. the amplitude of the wave c.both 3.The time interval for one repetition of the cycle in

  23. Physics: waves

    You are creating a transverse wave in a rope by shaking your hand from side to side. Without changing the distance that your hand moves, you begin to shake it slower and slower. What happens to the frequency? What happens to the amplitude? What happens to

  24. physics

    A string has a length of 2.50 m and is fixed at the ends. At a frequency of 85.0 Hz, a standing wave with 5 loops is formed. I got a, b and d. I need help with c and e thank you a. What is the wavelength of the waves that travel on the string? (i did this

  25. Physical Science

    Wave amplitude is related to A)wave velocity B)frequency C)energy D)wavelength

  26. Physics

    The speed of a transverse wave on a string is 450 m/s, while the wavelength is 0.18 m. The amplitude of the wave is 2.0 mm. What is the total up and down distance moved by the wave-particle for each cycle of the wave? What is the frequency of the wave?

  27. help please

    which sound would be louder? a.) a wave with an amplitude of 0 b.) a wave with an amplitude of 0.1 c.) a wave with an amplitude of 1.0 d.) a wave with an amplitude of 0.5

  28. physics

    The air pressure variations in a sound wave cause the eardrum to vibrate. Find the maximum velocity and acceleration of the eardrum for vibrations of amplitude 1.5 10-8 m at a frequency of 19.0 Hz.Repeat (b) for the same amplitude but a frequency of 19.0

  29. Physics

    Wave amplitude is related to what? (a) wave velocity (b) frequency (c) energy (d) wavelength

  30. physics

    Consider a wave that travels a distance of 3 meters in 1 second with a frequency of 2 hertz. What is its amplitude? A) 4 meters.B) 2 meters.C) Not enough information is given.D) 3 meters.E) 1 meter.

  31. Science

    In __, the amplitude of the carrier wave is changed to transmit information; the frequency is not changed. In __, the frequency of the carrier wave is changed __ phones and __ phones use radio waves to transmit signals. __ use electromagnetic signals from

  32. science

    A transverse wave has an amplitude of 5 cm, a frequency of 60 Hz and a distance from crest to next trough of 15 cm. Identify the wavelength of this wave. Please someone help asap I cant figure this out. Is there a formula?

  33. Science

    ENHANCING COMMUNICATION WITH WAVES 1. Which of the following electro magnetic waves is not used for communication? A. Gamma rays *** B. microwaves C. Infrared waves D. Radio waves 2. When you speak into a cell phone, your sound waves must be converted into

  34. Trigonometry

    Use a sine function to graph a sound wave with a period of 0.004 of a second and an amplitude of 3 cm. Find the frequency in hertz for this sound wave. (Enter only the number.)

  35. science

    two waves are traveling through the a container ofnitrogen . the amplitude of the first wave is .3 cm and the amplitude of the second wave is .9 cm. what is true about the two waves? a. the energy of the first wave is less than the second wave. b. the

  36. science

    The particles in a medium are disturbed by a wave, causing them to move up and down from their rest position. The maximum distance they move represents _____. A.)the wavelength of a longitudinal wave B.)the amplitude of a transverse wave*** C.)the

  37. Physics

    15.44 • The wave function of a standing wave is y(x, t) = 4.44 mm * sin[(32.5rad / m) * x] * sin[(754rad / s) * t] . For the two travel ing waves that make up this standing wave, find the (a) amplitude; (b) wavelength; (c) frequency; (d) wave speed; (e)

  38. Physics waves

    Two sinusoidal waves travel in the same direction and have the same frequency. Thier amplitudes are Y1 and Y2. The smallest possible amplitude of the resultant wave is: a) Y1+Y2 and occurs if they are 180 degrees out of phase b) [Y1-Y2] and occurs if they

  39. Physics

    A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0; the darker line represents the shape of the cord at time t = 0.10 s. (Note that the horizontal and vertical scales are

  40. physics

    a fisherman noticed that his boat was lifted by the wter waves about once evry two seconds. He looked at the waves wnd estimated the length of a wave to be a 6cm. He also estimated the vertical distance between the highest point snd the lowest point of the

  41. physics

    A wave on a string has a wave function given by y(x, t) = (0.0210 m)sin[(6.91 m^−1)x + (2.38 s^−1)t . (a) What is the amplitude of the wave? (b) What is the period of the wave? (c) What is the wavelength of the wave? (d) What is the speed of the wave?

  42. Physics (please help)

    A sinusoidal wave travels along a string. The time for a particle to move from maximum displacement to zero is 0.170s. What are the a)period b)frequency c) the wavelength is 1.40m what is the wave speed? ok I know i need the equation T=1/f and the wave

  43. science

    10. Which of the following correctly describes a gamma ray? A. long wavelength and low frequency B. long wavelength and high frequency C. short wavelength in low frecuency D. short wavelength and high frequency 11. Which of the following is true about all

  44. Physics-Please check-I had something wrong with my

    Would changing the frequency of a wave cause a change in amplitude? I would say only if the wave velocity remains the same because if the frequency increases, vibrations increase and then amplitude would decrease, correct? If I had a wave diagram will 4

  45. Science

    1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2.

  46. Science

    The maximum height that the particles of a medium move from the rest position is the a. amplitude of the wave. b. wavelength of the wave. c. frequency of the wave. d. speed of the wave.

  47. science

    In a longitudinal wave, the more particles that are compressed together determines the ___ of the wave. A. Amplitude B. Frequency C. Wavelength D. Velocity

  48. Physics

    A sinusoidal wave traveling on a string is moving in the positive x-direction. The wave has a wavelength of 6 m, a frequency of 48 Hz, and an amplitude of 9 cm. What is the wave function for this wave? (Use any variable or symbol stated above as

  49. Physics

    1) A wave with frequency 3.1 Hz and amplitude 2.7 cm moves in the positive x-direction with speed 5.6 m/s. Determine the wavelength. 2) The equation of a wave along the x-axis is given as: ξ cm = 3.4 sin (1.13 x - 0.75 t) in which ξ is the displacement.

  50. physics

    A certain transverse wave is described by the equation y(x,t) = (6.50 mm)sin2pi((t/0.0360 s)-(x/0.280m)) Determine the wave's (a) amplitude (b) wavelength (c) frequency (d) speed of propagation and (e) direction of propagation

  51. Physics

    The sinusoidal waveform can be varied by using which of the following parameters?? I. frequency of the carrier wave II.Amplitude of the carrier wave III. Phase angle

  52. Science

    1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2.

  53. physics wave

    A) Show that the average rate with which energy is transported along a cord by a mechnical wave of frequency f and amplitude D is: P(average) = 2(pi^2)u v(f^2)(D^2) v is speed of the wave u is the mass per unit length (M/L) B) If the cord is under a

  54. Physics

    A transverse wave 1.1cm in amplitude is propagating on a string; the wave frequency is 44 Hz. The string is under 23-N tension and has mass per unit length of 16g/m . What is the wave speed? What I've done: using sqrt(Tension/mass_per_unit):

  55. science

    Isaac and Joe worked together to draw a model of a transverse wave. Issac used the model to measure the distance between two crests. Joe said, "Good job measuring the wave's amplitude!" Why might Isaac have been confused by Joe's statement? A. Isaac

  56. physics

    A plane progressive wave is represented by the wave equation: y=0.1sin⁡(200 ðt-20ðx/17) Where y is in millimetres, t is in seconds, and x is the distance from a fixed origin, O, in metres. Find: The frequency of the wave The wavelength of the wave The

  57. Physics

    The speed of a transverse wave on a stretched string can be changed by adjusting the tension of the string. A stationary wave pattern is set up on a stretched string using an oscillator set at a frequency of 650 Hz. How must the wave be changed to maintain

  58. Physics-please

    When a sound wave passes from air into a solid object, which of the following wave properties change? -Frequency -Wave Speed -Amplitude -Wavelength all that apply

  59. Physics-Please check?

    Would changing the frequency of a wave cause a change in amplitude? I would say NO because they don't affect each other, correct? If I had a wave diagram will 4 complete waves showing and it said the diagram represented 4 sec in time the frequency would be

  60. science

    the waves above is an electrical signal resulting from a sound wave. how does the information in this electrical signal make it to your car radio, it is carried on an FM wave by modulating its frequency,is it carried on an FM wave by its amplitude, is it

  61. physics

    Two waves traveling on a string in the same direction both have a frequency of 92 Hz, a wavelength of 0.19 m, and an amplitude of 0.32 m. What is the amplitude of the resultant wave if the original waves differ in phase by pi /3 rad? What is the phase

  62. Physics

    A sinusoidal wave traveling on a string is moving in the positive x-direction. The wave has a wavelength of 8 m, a frequency of 60 Hz, and an amplitude of 9 cm. What is the wave function for this wave? (Use any variable or symbol stated above as

  63. Physics -- check answers please

    1. If 31 waves pass by a point in 1.7 s, what's the frequency? my answer: 18.2 Hz 2. if a crest with an amplitude of 7cm interferes with a trough with an amplitude of 10 cm, the resulting wave has an amplitude of: my answer: -3

  64. College Physics 2

    A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. (B) What would be the frequency of a station for which the carrier wave was 400 m long?

  65. PLEASE HELP PHYSICS

    True or False 1. The frequency of the wave can be changed by changing the frequency at which the waves are generated 2. Two crests are out of phase with each other. A crest and a trough are in phase with eachother 3. When a wave reaches the boundary of a

  66. Science

    Which of the following affects the speed of sound? A. The amplitude of the wave. B. The frequency of the wave. C. The phase of the medium. D. The wavelength. Is the answer A? Thank you

  67. Science

    P: If wave a has an amplitude of 3 meters then inteferes wiht wave b that has an amplitude of 2 meters. the sum of te waves produce wave c with 5 meters Q:what is the wave interaction explain? Also m,ay you explain what destructive inteference is and

  68. physics

    A wave of amplitude 0.37 m interferes with a second wave of amplitude 0.18 m is traveling in the same direction. What is the largest resultant amplitude that can occur?

  69. Physics

    A point source is generating circular water waves. (a) What does the amplitude of the wave near the source depend on? (b) What happens to the amplitude of the wave as it spreads outward? (c) Why the amplitude of a wave changes as it spreads outwards?

  70. Science

    1.A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the reporter describing? (1 point) A.frequency and wavelength B.wavelength and wave speed C.amplitude and wavelength*** D.amplitude

  71. Science Help Please

    A weatherman reports, "The storm waves are about 2 meters high and about 25 meters apart." What properties of waves is the reporter describing? A. frequency and wavelength B. wavelength and wave speed C. amplitude and wavelength D. amplitude and frequency

  72. Physics

    A string is attached to a wall and vibrates back and forth, as in Figure 17.18. The vibration frequency and length of the string are fixed. The tension in the string is changed, and it is observed that at certain values of the tension a standing wave

  73. physics

    Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m. a.) What is the equation of the standing wave? b.) At what distances from x=0 are the nodes and antinodes? c.)

  74. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

  75. Physics: Wave Motion

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

  76. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

  77. Physics:Wave Motion

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

  78. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

  79. Science

    1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed Amplitude and wavelength Amplitude and frequency 2. Sound

  80. Science

    1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2.

  81. Physical Science

    I need help answering these two questions, can someone please help? 1.How does energy transfer by waves differ from energy transer my moving objects? 2.Define amplitude and frequency as they relate to a wave. [I know amplitude is the height of a wave and

  82. Physics HELP!!

    The wave is travelling to the right at 18.2m/s. What is the amplitude if the maximum displacement is 19.9cm and the total distance travelled by the wave is 41.2m? b) What is the wavelength of the wave? c).What is the frequency of the wave?

  83. Science

    When a sound wave passes from air into a solid object, which of the following wave properties change? -frequency -wave speed -amplitude -wave length Can be more than one

  84. Physics

    The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m. 2) What is the wavelength of the wave? 3)What is the frequency of the wave?

  85. Physics help

    a wave with a frequency of 3.1 hz and a wavelength of 0.3 meters experiences a lengthening of wavelength to 2.6 meters what is the new frequency of this wave? a wave generator produces a wave with a frequency of 45 hz and a wavelength of 1.9 meters. If the

  86. physics

    A wave traveling in the + x direction has an amplitude of 0.35 m, a speed of 5.2 m/s, and a frequency of 14 Hz. Determine: 3.1.the wavelength, (2) 3.2.the wave number, (2) 3.3the angular velocity, (2) 3.4. the equation of the wave

  87. physics

    Two waves traveling on a string in the same direction both have a frequency of 92 Hz, a wavelength of 0.19 m, and an amplitude of 0.32 m. What is the amplitude of the resultant wave if the original waves differ in phase by pi /3 rad? What is the phase

  88. Physics 2

    1.) The microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency? 2.) An AM radio station has a wavelength of 300 m. find this station’s frequency? 3.) A) Canadian FM radio station (CLAW) broadcasts

  89. Physics 2

    A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. (B) What would be the frequency of a station for which the carrier wave was 400 m long?

  90. physics

    Amplitude of the wave is 0.2m. The time period of the vibration is 0.5secs. Calculate the frequency, velocity and the wave length.

  91. Science

    P: If wave a has an amplitude of 3 meters then inteferes wiht wave b that has an amplitude of 2 meters. the sum of te waves produce wave c with 5 meters Q:what is the wave interaction explain? P

  92. College Physics 2

    Find the resonant frequency of a circuit that has a 400 mH inductor and a 30 nF capacitor connected in series. A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. B) What would be the

  93. physics

    A wave with an amplitude of 1.94 m interferes with a second wave with an amplitude of 0.85 m. What is the largest resulting wave that could occur if these two waves destructively interfere?

  94. Physics

    A wave has an amplitude of .25m, a wavelength of .68m and a frequency of 3.2 hz. Find it's velocity? To solve I just used v=3.2 * .68=2.176m/s because amplitude doesn't factor into velocity. Is this right?thanks.

  95. physics

    Two waves traveling on a string in the same direction both have a frequency of 100 Hz, a wavelength of 2cm and an amplitude of .02 m. What is the amplitude of the resultant wave if the original waves differ in phase (a) by Pi/6 and (b) by Pi/3

  96. physics

    Two waves are travelling on a string in the same direction. Both have a frequency of 101 Hz, a wavelength of 0.400 m, and an amplitude of 0.410 m. What is the amplitude of the resultant wave if the original waves differ in phase by π/4 rad?

  97. Physics

    The equation of a transverse wave travelling wave on a string is: Y=3 cos[3.14(0.5x-200t)] Where x and y in cm and t is in second. a)find the amplitude, wave length,frequency period,velocity of propagation. b)if the mass per unit length of the string is

  98. Physics

    A wave with an amplitude of 31 mm interferes with another wave that has the same wavelength, an amplitude of 13 mm. a) What is the maximum amplitude of the resultant wave if the two waves are in phase? b) What is the maximum amplitude of the resultant wave

  99. Physics HELP!!!!!!!!

    A string is attached to a wall and vibrates back and forth, as in Figure 17.18. The vibration frequency and length of the string are fixed. The tension in the string is changed, and it is observed that at certain values of the tension a standing wave

  100. physics

    the speed of a transverse wave on a string is 450m/s while the wavelength is 0.18m. The amplitude of the wave is 2.0mm. How much time is required for a particle of the string to move a total distance of 1.0km.... The thing that confuses me about this

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