Using the sinusoidal wave to the right answer questions 1-3 1. What is the amplitude? a. 0.5 m y (m) 200 m/s b. Im c. 2 m d. 4 m 2. What is the wavelength? b. Im a. 0.5 m c. 2 m d. 4 m 3. What is the frequency? a. 50 Hz b. 100 Hz c. 200 Hz d. 400 Hz 4. Which statement(s) about mechanical waves is (are) true?

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I need help with this I'm not sure what to do it is waves and sound

y (m)
Using the sinusoidal wave to the right answer questions 1-3
1. What is the amplitude?
200 m/s
a. 0.5 m
b. Im
c. 2 m
d. 4 m
2. What is the wavelength?
b. Im
a. 0.5 m
c. 2 m
d. 4 m
3. What is the frequency?
a. 50 Hz
b. 100 Hz
c. 200 Hz
d. 400 Hz
4. Which statement(s) about mechanical waves is (are) true?
a. Mechanical waves in less rigid materials last longer than in rigid materials.
b. Mechanical waves in rigid materials go farther than in less rigid media.
c. Mechanical waves in rigid materials are slower than in less rigid materials.
d. all of the above
5. An object completes 240 cycles in 15 s. What is its frequency, in hertz?
6. A pendulum completes 75 swings in 25 s. What is its period?
7. If SR-71 Blackbird can reach speeds above Mach 3. If the Blackbird is flying at Mach 3 and the air
temperature is 17°C, what is the speed of the aircraft in km/h?
8. The speed of sound at 0°C is 331 m/s. What is the speed of sound at 25°C?
9. How many times louder is a 100 dB sound than a 50 dB sound?
Transcribed Image Text:y (m) Using the sinusoidal wave to the right answer questions 1-3 1. What is the amplitude? 200 m/s a. 0.5 m b. Im c. 2 m d. 4 m 2. What is the wavelength? b. Im a. 0.5 m c. 2 m d. 4 m 3. What is the frequency? a. 50 Hz b. 100 Hz c. 200 Hz d. 400 Hz 4. Which statement(s) about mechanical waves is (are) true? a. Mechanical waves in less rigid materials last longer than in rigid materials. b. Mechanical waves in rigid materials go farther than in less rigid media. c. Mechanical waves in rigid materials are slower than in less rigid materials. d. all of the above 5. An object completes 240 cycles in 15 s. What is its frequency, in hertz? 6. A pendulum completes 75 swings in 25 s. What is its period? 7. If SR-71 Blackbird can reach speeds above Mach 3. If the Blackbird is flying at Mach 3 and the air temperature is 17°C, what is the speed of the aircraft in km/h? 8. The speed of sound at 0°C is 331 m/s. What is the speed of sound at 25°C? 9. How many times louder is a 100 dB sound than a 50 dB sound?
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