Figure 6-6 shows displaceme curves for two sinusoidal waves for motion at a particular position on a string. On the graph plot the complex wave formed hu the sum (or superposition) of the two sinusoidal versus time waves. 3. 2 -1 -2 -3 L... 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 TIME (seconds) Two sinusoidal waves to be FIGURE 6-6 uperimposed on a string. HEIGHT (inches) 4. What is the amplitude of the wave represented by the dashed curve? a) 1 in b) 2 in c) 3 in d) 4 in e) none of these 5. What is the repeat frequency of the complex wave represented by the sum of the two waves? a) 12.5 Hz b) 10 Hz c) 25 Hz d) 50 Hz e) none of these 6. What is the repeat time of the complex wave? I a) 0.04 s b) 0.08 s c) 0.10 s d) 0.12 s e) none of these

The peniodic wove below has a speed of 3.0 x 10º m/s. wal 6.0 m 5. What is the frequency of the wave? A) 5.0 x 107 Hz B) 1.8 x 10° Hz C 20 x 105 Hz D) 1.0 x 108 Hz

QUESTION 6 Consider the following sinusoidal function that represents a propagating wave in the x-direction. y(x, t) = (3.0 m)cos[(5m-1)x - (8 rad/s)t]. %3D What is the speed of this wave? а. 0.80 m/s b. 1.2 m/s C. 1.6 m/s d. 2.0 m/s e. 0.40 m/s

Figure 6a shows the appearance of a progressive wave transverse wave at a particular instant in time. The wave travels at a speed of 12 ms^-1. All Particles in the wave osciallte with simple harmonic motion.  i. Calculate the frequency and time period of the oscillations. ii. Calculate the maximum acceleration of the particles (magnitude only). iii. Calculate the velocity of the particles when the displacement is ±1.0 cm iv. Compare the amplitude and phase of particles X and Y.