College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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#2 explain how you got to the answer pls
![**Transcription and Explanation for Educational Purposes**
---
**Text:**
1. **High Frequency Radio Waves**
High frequency radio waves are emitted by the source shown. These waves either travel straight along the ground a distance \(D\) to the detector, or travel up and are reflected by the atmosphere at a height \(H\) before reaching the detector.
2. **Sound Wave in a Tube**
A sound wave enters the tube shown below. Half of the wave travels along the straight portion of the tube, while the other half follows the curved semicircle of radius \(r\). For what values of the wavelength \(\lambda\) of the wave will the sound at the detector be a maximum? a minimum? Answer in terms of \(r\).
**(d) Additional Problem**
What is the maximum transverse velocity of the string (that is, the maximum vertical velocity of particles in the cord)?
\[ \text{[Ans. (b) 1 m; 10 Hz; (c) 10 N; (d) 2\(\pi\) m/s]} \]
---
**Diagram Explanation:**
- **Left Diagram (High Frequency Radio Waves):**
- **Source:** The emitting point of the radio waves.
- **Path 1:** Travels straight along the ground to the detector.
- **Path 2:** Travels upwards, reflects off the atmosphere at height \(H\), and then reaches the detector.
- **Atmosphere:** Displays the reflection path of radio waves.
- **Right Diagram (Sound Wave in a Tube):**
- **Straight Tube Portion:** Half of the sound wave travels directly through this part.
- **Curved Semicircle Tube Portion:** The other half of the sound wave follows this path, which has a radius \(r\).
- **Wave Entry and Path:** Arrows indicate the direction of the sound wave through the tube.
This setup is used to determine conditions under which sound at the detector reaches maximum or minimum intensity based on interference between the two halves of the wave.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fca440243-7bda-4b46-9f7d-8d36d91ce325%2F816aa6f6-bb39-46ed-9b3a-0a50c0ee04af%2F0pwpk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Transcription and Explanation for Educational Purposes**
---
**Text:**
1. **High Frequency Radio Waves**
High frequency radio waves are emitted by the source shown. These waves either travel straight along the ground a distance \(D\) to the detector, or travel up and are reflected by the atmosphere at a height \(H\) before reaching the detector.
2. **Sound Wave in a Tube**
A sound wave enters the tube shown below. Half of the wave travels along the straight portion of the tube, while the other half follows the curved semicircle of radius \(r\). For what values of the wavelength \(\lambda\) of the wave will the sound at the detector be a maximum? a minimum? Answer in terms of \(r\).
**(d) Additional Problem**
What is the maximum transverse velocity of the string (that is, the maximum vertical velocity of particles in the cord)?
\[ \text{[Ans. (b) 1 m; 10 Hz; (c) 10 N; (d) 2\(\pi\) m/s]} \]
---
**Diagram Explanation:**
- **Left Diagram (High Frequency Radio Waves):**
- **Source:** The emitting point of the radio waves.
- **Path 1:** Travels straight along the ground to the detector.
- **Path 2:** Travels upwards, reflects off the atmosphere at height \(H\), and then reaches the detector.
- **Atmosphere:** Displays the reflection path of radio waves.
- **Right Diagram (Sound Wave in a Tube):**
- **Straight Tube Portion:** Half of the sound wave travels directly through this part.
- **Curved Semicircle Tube Portion:** The other half of the sound wave follows this path, which has a radius \(r\).
- **Wave Entry and Path:** Arrows indicate the direction of the sound wave through the tube.
This setup is used to determine conditions under which sound at the detector reaches maximum or minimum intensity based on interference between the two halves of the wave.
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