please answer me fast please help me
Answers
1. Those 2 persons have different medium between their listner. Cause the particles of air between the speaker and the listner are not always the same in same order. So the order of medium changes the sound of voice. It could also be due to the quality of the sound. The quality is the shape of the sound wave.
2. They vary in thickness to produce different loudness and pitch(not the quality) of the sound.
3. Time period of the pendulum is dependent on the lenght of string and the gravitational accelaration by this formula:
T=√(2d/g).
But it can be thought as another, when the pendulum is pulled up with certain hieght and then released, the time period is, say t. But when we pull it more higher( more potential energy), then the potential energy provides it momentum and the time period decreases. But uf we pull higher the distance to be travelledbecomes greater and so the time period increaes. The decrease snd increase sit at just the right amount that the amplitude have no effect on the time period.
4. The sound produced by the vocal cord is produced by its vibration with the help of air passing through it. The air is exhaled from the lungs. So the person needs to inhale to speak more.
5. Soft talks have very low energy, or specifically loudness. So the brain cant get get the sound with the audible range of the sounds loudness(not the frequency). Moreover, the person is far away so the sounds amplitude looses energy untill it reaches the listner. So he cant listen.
6. The explosions on the Sun cant be heard because theres no medium in between( though there are solar winds or left over of Nuclear fussion in the space) to travel to reach us. So we cant listne.
7. Small rooms minimizes the time interval between sound amd echos. So the brain just merges these sounds into one. While the large room increases the time period and so we can hear them properly.
8. Idk
9. Because they can discomfort the patients with loud soinds
10. Revibration is the reflection of the sound. The concert halls are huge so it makes the back people to not to litsen the voice. But revibration helps to increase the loudness.
Hope this helps.
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