A tuning fork is used to produce sound waves with a frequency of 440 Hz, the tuning reference note. What is the wavelength (in m) of the sound waves when the sound speed is
345 m/s?
A. 0.78
B. 0.92
C. 1.07
D. 1.28
E. 1.46

Stion 13 of 20 : select the best answer for the question. 13. if a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°c, what will be the volume at 50°c? a. 0.002021624 m3 b. 0.004021624 m3 c. 0.000010812 m3 d. 0.002010812 m3

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving