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NARA [144]
3 years ago
13

Acoustics is the study of sound. In large rooms, such as theaters where large orchestras perform, cushioned seats and carpeted f

loors are often used to help ________ the sound so that there are few noise reflections.
Physics
1 answer:
stiv31 [10]3 years ago
8 0

Answer:

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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Imagine Two Artificial Satellites Orbiting Earth At The Same Distance. One Satellite Has A Greater Mass Than The Other One? Whic
Bad White [126]

After reading this whole question, I feel like I've already
earned 5 points !

-- Two satellites at the same distance, different masses:

The forces of gravity between two objects are directly
proportional to the product of the objects' masses.  In
other words, the gravitational forces between the Earth
and an object on its surface are proportional to the mass of
the object.  In other words, people with more mass weigh more
on the Earth, and the Earth weighs more on them. 

If the satellites are both at the same distance from Earth,
then the Earth pulls on the one with more mass with greater
force, and also the one with more mass pulls on the Earth
with greater force.

-- Two satellites with the same mass, at different distances:

The forces of gravity between two objects are inversely
proportional to the square of the distance between them. 
In other words, the gravitational forces between the Earth
and an object are inversely proportional to the square of
the distance between the object and the center of the Earth. 

If the satellites both have the same mass, then the Earth
pulls on the nearer one with greater force, and also the
nearer one pulls on the Earth with greater force.

-- Resistor in a circuit when the voltage changes:

The resistance depends on how the resistor was manufactured. 
Its resistance is marked on it, and doesn't change.  It remains
the same whether the voltage changes, the current changes,
the time of day changes, the cost of oil changes, etc.

If you increase the voltage in the circuit where that resistor is
installed, the current through the resistor increases.  If the current
remains constant, then you can be sure that somebody snuck over
to your circuit when you weren't looking, and they either installed
another resistor in series with the original one to make the total
resistance bigger, or else they snipped the original one out of the
circuit and quickly connected one with more resistance in its place.

6 0
3 years ago
On an ice skating rink, a girl of mass 50 kg stands stationary, face to face with a boy of mass 80 kg. The children push off of
sasho [114]

The velocity of the girl is  -4.8 m/s.

Using the principle of conservation of linear momentum, The total momentum of  bodies before and after collision is constant. Since the two objects are stationary, the initial momentum of each body is zero.

Thus;

0 = (80 × 3) + (50 × v)

0 = 240 + 50 v

-240 = 50 v

v = -240/50

v = -4.8 m/s

Note that the negative sign shows that the velocity of the girl is in opposite direction that that of the girl.

Learn more about momentum: brainly.com/question/904448

5 0
2 years ago
What is the main reason plants and animals have sex?
Klio2033 [76]
Evolution of sexual production
7 0
3 years ago
Read 2 more answers
Match the organs to the functions they perform during digestion.<br> passes food to esophagus
mixas84 [53]

Answer:

the mouth I think

Because: the oesophagus is the throat and the mouth is how the food gets to the oesophagus. might be wrong because I'm not sure about the organ part but I'm pretty sure that's all it could be

8 0
3 years ago
What part of the gun position equipment supports all of the elevating parts of the gun?
BARSIC [14]
The gunstock it’s also called stock or shoulder stock
5 0
3 years ago
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