Amy, standing near a straight road, records the sound of the horn of a car traveling at a constant speed. The recorded frequency as a function of the car's position along the road for trials at different car speeds is accurately graphed below. 1050 Observed Frequency, is 1000 950 900 850 800 ……….. TATA -100 - -U -50 S 0 Position, (m) 50 The speed in trial T is that in other trials. The distance of Amy from the path in R is ..... in S. The speed in trial Q is ..... that in other trials. 100 When the car is far away, the average of the frequencies moving in and out the frequency at rest. The speed in trial U is ..... that in S. The speed in trial S is ..... to that in R. Using the data on the figure, calculate the speed of the car in trial U. Use 340 m/s for the speed of sound.

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**Graph Explanation:**

- **Title:** The graph shows the relationship between observed frequency (Hz) and position (m).
- **Axes:** 
  - The y-axis represents the "Observed Frequency (Hz)," ranging from 800 Hz to 1050 Hz.
  - The x-axis represents the "Position (m)," ranging from -100 m to 100 m.

- **Data Lines:**
  - Different lines, labeled Q, R, S, T, and U, depict trials with varying car speeds. Each line shows how the frequency changes as the car moves along the road.
  - The lines start at a higher frequency, reach a peak around position 0, and then dip to a lower frequency as the car moves away.

**Questions:**

1. The speed in trial T is ___ that in other trials.
2. The distance of Amy from the path in R is ___ in S.
3. The speed in trial Q is ___ that in other trials.
4. When the car is far away, the average of the frequencies moving in and out is ___ the frequency at rest.
5. The speed in trial U is ___ that in S.
6. The speed in trial S is ___ to that in R.

**Calculation Task:**

Using the data on the figure, calculate the speed of the car in trial U. Use 340 m/s for the speed of sound.
Transcribed Image Text:**Graph Explanation:** - **Title:** The graph shows the relationship between observed frequency (Hz) and position (m). - **Axes:** - The y-axis represents the "Observed Frequency (Hz)," ranging from 800 Hz to 1050 Hz. - The x-axis represents the "Position (m)," ranging from -100 m to 100 m. - **Data Lines:** - Different lines, labeled Q, R, S, T, and U, depict trials with varying car speeds. Each line shows how the frequency changes as the car moves along the road. - The lines start at a higher frequency, reach a peak around position 0, and then dip to a lower frequency as the car moves away. **Questions:** 1. The speed in trial T is ___ that in other trials. 2. The distance of Amy from the path in R is ___ in S. 3. The speed in trial Q is ___ that in other trials. 4. When the car is far away, the average of the frequencies moving in and out is ___ the frequency at rest. 5. The speed in trial U is ___ that in S. 6. The speed in trial S is ___ to that in R. **Calculation Task:** Using the data on the figure, calculate the speed of the car in trial U. Use 340 m/s for the speed of sound.
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