The wavefunction of a harmonic wave on a string is y(x,t) = 0.002sin(45.7x + 397.0t), where x and y are in m and t is in s. What is the speed of the wave taking positive to be in the +x direction and negative to be in the -x direction. 8.68 m/s Submit Answer Incorrect. Tries 1/7 Previous Tries What is the wavelength of the traveling wave? Submit Answer Tries 0/7 What is the period of this wave? Submit Answer Tries 0/7

Wind gusts create ripples on the ocean that have a wavelength at 5.00 cm and propagate at 2.00m/s. What is their frequency?

A string on the violin has a length of 24.00 cm and a mass of 0.860 g. The fundamental frequency of the string is 1.00 kHz. (a) What is the speed of the wave on the string? (b) What is the tension in the string?

A string on the violin has a length of 23.00 cm and a mass of 0.900 grams. The tension in the string 850.00 N. The temperature in the room is TC=24.00C . The string is plucked and oscillates in the n=9 mode. (a) What is the speed of the wave on the string? (b) What is the wavelength of the sounding wave produced? (c) What is the frequency of the oscillating string? (d) What is the frequency of the sound produced? (e) What is the wavelength of the sound produced?

and 4.00 m from the other? Ans. 4.1 rad 7. A bat flies toward a wall at a speed of 5.0 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 30 kHz. What frequency does the bat hear in the reflected wave? 8 The solution of travelling wave v(cos(kx - wt) is Ans. 30,888 kHz w²0²y a²y

5 TE Consider a wave described by the wave function y (x,t)30.50m sin 9TT st+ 4. -1 ), find the 10 wavelength of wave? O a. 1.2 m O b. 0.89 m c. 1.12 m O d. 1.35 m DELL

A sinusoidal wave train is described by the equation: y = ( 0.95 m) sin ( 0.8nx + 50nt + nl3 ) A. Find the frequency of the wave. B.Find the wave speed. C.Find the wavelength. D.Find the wave number k.

IXODF The diagram is a "snapshot" of a wave. The frequency of the wave is 110 Hz. Each division in the graph is 1 cm. Find the indicated quantities. AA x (cm) A D. 5.494 cm 7.302 cm E. 4.221_cm 5.499 cm 5.006_cm 6.279 cm F. A. 14.19 cm 18.55 cm 17.39 cm B. 12.48 cm C. 12.63 cm F. 10.1 cm 1--1 7. speed A. 1389 cm/s D. B. 2430 cm/s E. 1710 cm/s 1787 cm/s 2503_cm/s C. 2170 cm/s F. If the linear mass density of a cord is 0.042 kg/m, then what is the mass of 245 m of the cord? 8. A. 9.855 kg D. 9.433 kg B. 9.914 kg E. 10.07 kg C. 10.29 kg F. 10.80 kg 1-1 5. amplitude A. B. C. 1--1 6. wavelength ook Pro DEE D. E. IVVVS

the spec swer? Explain. 29. W A sinusoidal sound wave moves through a mediu is described by the displacement wave function s(x, t) = 2.00 cos (15.7x – 8581) %3D t onds. Find (a) the amplitude, (b) the wavelength (c) the speed of this wave. (d) Determine the instant neous displacement from equilibrium of the elements cs the medium at the position x = 0.050 0 m at t = 3.00 (e) Determine the maximum speed of the element's oscil- latory motion. ms. solve part D E only

21.13. A horizontal spring is jiggled back and forth at one end by a device that makes 80 oscillations in 12 s. What is the speed of the longitudinal waves if condensations are separated by 15 cm as the wave progresses down the spring? Ans. 1.00 m/s