1. A transverse wave on a string is given by the following equation: y(x, t) = (0.025 m) sin[(691.2 rad/s)t - (8.537 rad/m)x] Determine the wave speed in m/s. (3 pts) 2. A sonar wave with a wave speed of 1524 m/s and a frequency of 28.2 kHz is sent from a ship at the ocean surface toward the ocean floor. The ship detects the sonar echo reflection 3.7 s later a. Determine the wavelength of the sonar wave. (2 pts) b. Determine the depth of the ocean floor below. (2 pts) 3. A wave travels on a guitar string with a wave speed of 524 m/s. The linear density of the string is 6.16 x 104 kg/m. Determine the tension in the guitar string. (2 pts)4. A company manufactures an alarm clock for deep sleepers with a sound intensity level of 115 dB Determine the sound intensity in W/m of the alarm. The threshold of human hearing is 1.0 x 10-12 W/m (2 pts) 5. A stationary observer sees an approaching ambulance traveling at 15 m/s with flashing lights and siren. The siren produces a sound with a frequency of 1520 Hz. Determine the frequency of the sound from the siren perceived by the observer. The speed of sound in air is 343 m/s. (2 pts) 6. A person is standing 1.0 m away from two people having a normal conversation. The sound intensity of the conversation is 3.2 x 10% W/m. Determine the sound intensity level in dB of the same conversation for a person standing 4.0 m away. The threshold of human hearing is 1.0 x 10-12 W/m. (3 pts)