Acoustics is the study of sound. In large rooms, such as theaters where large orchestras perform, cushioned seats and carpeted floors are often used to help the sound so that there are few noise reflections.

soundproofing or absorbing

Explanation:

Acoustics is the study of waves, vibrations and sound and its most common applications lie in the sound and noise control industries. Acoustic protection is the application of soft and porous material to protect individuals against undesirable sounds and noises.

cushioned seats and carpeted floors are used in soundproofing to block the unwanted noise and sound.

The Cheapest Ways To Soundproof A Room

1. Rugs:

Rugs make excellent vibration dampeners.

2. Weather Stripping:

If you know that sound is getting into your room via the door or the windows then a very cheap and effective solution can be to use weather stripping.

3. Blankets.

4. Curtains.

5. Egg Cartons.

Homemade Soundproofing Panels

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electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.