Concept explainers
Videos
Two pulses traveling on the same string are described by
(a) In which direction does each pulse travel? (b) At what instant do the two pulses cancel for all x? (c) At what point do the two pulses cancel at all times t?
Want to see the full answer?
Check out a sample textbook solution
Chapter 18 Solutions
Physics for Scientists and Engineers with Modern, Revised Hybrid (with Enhanced WebAssign Printed Access Card for Physics, Multi-Term Courses)
- Rank the waves represented by the following functions from the largest to the smallest according to (i) their amplitudes, (ii) their wavelengths, (iii) their frequencies, (iv) their periods, and (v) their speeds. If the values of a quantity are equal for two waves, show them as having equal rank. For all functions, x and y are in meters and t is in seconds. (a) y = 4 sin (3x 15t) (b) y = 6 cos (3x + 15t 2) (c) y = 8 sin (2x + 15t) (d) y = 8 cos (4x + 20t) (e) y = 7 sin (6x + 24t)arrow_forwardA sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.arrow_forwardThe equation of a harmonic wave propagating along a stretched string is represented by y(x, t) = 4.0 sin (1.5x 45t), where x and y are in meters and the time t is in seconds. a. In what direction is the wave propagating? be. N What are the b. amplitude, c. wavelength, d. frequency, and e. propagation speed of the wave?arrow_forward
- If y = 0.02 sin (30 x − 400 t) (SI units), the frequency of the wave is what?arrow_forwardThe amplitude of a wave disturbance M20 (1 positive x-direction is given by y = Tetromabruts esd (1+x)² by y = 1 ad m travelling in the at time t = 0 and [1 + (x − 1)²] - at t = 2 s, where x and y are in metre. The shape of the wave disturbance does not change during the propagation. The velocity of the wave is...... m/s.arrow_forwardA wave is described by the given wave function , -1 -1 TT y(x,t) = 0.5m sin 4 10 The frequency of the wave in hertz 01.125 01.35 D0.89 01.2arrow_forward
- A progressive wave travelling in the x-direction is represented by the following equation: y = A sin(Bt−Cx) Given that parameters A, B and C are given in SI units calculate the velocity of the wave for A=50, B= 2307 and C= 26.arrow_forwardTwo identical waves travel in the same direction, each with a wavelength λ = 0.5 m and speed v = 20 m/s. When the two waves interfere, they form a resultant wave. The angular frequency of the resultant wave is:arrow_forwardA traveling wave has displacement given by y(x,t)=(2.0cm)×cos(2πx−4πt), where x is measured in cm and t in s. What is the speed of the wave?arrow_forward
- Light waves are electromagnetic waves that travel at 3.00 × 108 m/s. The eye is most sensitive to light having a wavelength of 5.50 × 10–7 m. Find (a) the frequency of this light wave and (b) its period.arrow_forwardTwo identical traveling waves, moving in the same direction, are out of phase by p/2 rad.What is the amplitude of the resultant wave in terms of the common amplitude ym of the two combining waves?arrow_forwardTwo identical traveling waves, moving in the same direction, are out of phaseby π/2 rad. What is the amplitude of the resultant wave in terms of the common amplitude ym of the two combining waves?arrow_forward
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning