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3 years ago

10

If a speaker is moved from 2 feet away to 4 feet away, the volume of the sound will: half double quarter stay the same

1 answer:

neonofarm [45]3 years ago

6 0

Answer:

the volume of the sound will quarter

Explanation:

As you move far away from the source, the loudness of sound decreases. This is because as the distance from the source increases, the area it covers also increases thereby spreading the energy over a great area leading to lesser loudness and intensity.

As a result of this, sound intensity follows an inverse square law:

I ∝ 1/d²; where I is the intensity and d is the distance from source.

Therefore If a speaker is moved from 2 feet away to 4 feet away (increment of 2 feet), the volume of the sound would quarter (1/2² = 1/4)

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Which of the following answers below is the correctly balanced half-reaction for the reduction of the SO4 ^-2 ion in acid soluti

Rom4ik [11]

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3 years ago

A gas balloon has a volume of 106.0 liters when the temperature is 45.0 °C and the pressure is 740.0 mm of mercury. What will it

Zarrin [17]

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Explanation:

Given:

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P2 = 780 mm

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3 years ago

How many atoms of hydrogen are in 0.56 mol of (NH4)2SO4

BabaBlast [244]

<h2>Answer: $2.7\times 10^{24}$ atoms</h2>

Explanation:

The given formula of the compound is $(NH_{4})_{2}SO{4}$

The formula says

Every mole of $(NH_{4})_{2}SO{4}$ contains $8$ moles of atoms of hydrogen.

Given that number of moles of compound is $0.56$

So,the number of moles of hydrogen atoms present is $0.56\times 8=4.48$

Since each mole has $6.022\times 10^{23}$ atoms,

$4.48$ moles has $4.48\times 6.022\times 10^{23}=2.7\times 10^{24}$ atoms.

7 0

3 years ago