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Sagot :
Answer:
1. v = 331 m/s + (0.6 m/s/C) × T
v = 331 m/s + (0.6 m/s/C) × 20°C
v = 331 + 0.6 × 20
v = 331 + 12
v = 343 m/s
2. v = 331 m/s + (0.6 m/s/C) × T
v = 331 m/s + (0.6 m/s/C) × 18°C
v = 331 + 0.6 × 18
v = 331 + 10.8
v = 341.8 m/s
3. a. Decrease
b. Increase
c. Not change
d. Decrease
4. If component waves have the same amplitude and same frequency, are in phase, and travel in the same direction, reinforcement occurs. The resultant wave travels in the same direction as each component wave and is in phase with the component waves. It has the same frequency and same wavelength, but the amplitude is twice as great as the amplitude of either component wave. If the two waves are out of phase and are moving molecules through the same distance in opposite directions, the resultant motion is zero. Here interference occurs.
Reinforcement and interference can occur within a resultant wave that results from waves with different frequencies.
Explanation:
Got off Penn foster
Answer:
1. v = 331 m/s + (0.6 m/s/C) × T
v = 331 m/s + (0.6 m/s/C) × 20°C
v = 331 + 0.6 × 20
v = 331 + 12
v = 343 m/s
2. v = 331 m/s + (0.6 m/s/C) × T
v = 331 m/s + (0.6 m/s/C) × 18°C
v = 331 + 0.6 × 18
v = 331 + 10.8
v = 341.8 m/s
3. a. Decrease
b. Increase
c. Not change
d. Decrease
4. If component waves have the same amplitude and same frequency, are in phase, and travel in the same direction, reinforcement occurs. The resultant wave travels in the same direction as each component wave and is in phase with the component waves. It has the same frequency and same wavelength, but the amplitude is twice as great as the amplitude of either component wave. If the two waves are out of phase and are moving molecules through the same distance in opposite directions, the resultant motion is zero. Here interference occurs.
Reinforcement and interference can occur within a resultant wave that results from waves with different frequencies.
Explanation:
i did the test
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