1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
taurus [48]
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

Chemistry
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)

You might be interested in
A balloon is filled to a volume of 1.6 L at 278 K. The balloon is left outside overnight and the temperature has dropped to 253
german

Explanation:

Charles' law gives the relationship between the volume and the temperature of the gas. Mathematically,

Volume ∝ Temperature

i.e. \dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}

We have, V₁ = 1.6 L, T₁ = 278 K, T₂ = 253, V₂=?

V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{1.6\times 253}{278}\\\\V_2=1.45\ L

So, the new volume is 1.45 L.

6 0
3 years ago
Jaleh takes path 1 from point A to point B. She then runs
polet [3.4K]

Answer:

Explanation:

0 m/s

6 0
2 years ago
Read 2 more answers
Since helium is lighter than air, it is difficult to measure the mass of a sample, so to find out the mass of helium in a birthd
d1i1m1o1n [39]

Answer:

0.7457 g is the mass of the helium gas.

Explanation:

Given:  

Pressure = 3.04 atm

Temperature = 25.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (25.0 + 273.15) K = 298.15 K  

Volume = 1.50 L

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

3.04 atm × 1.50 L = n × 0.0821 L.atm/K.mol × 298.15 K  

<u>⇒n = 0.1863 moles</u>

Molar mass of helium = 4.0026 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

0.1863\ mole= \frac{Mass}{4.0026\ g/mol}

Mass_{He}= 0.7457\ g

<u>0.7457 g is the mass of the helium gas. </u>

6 0
3 years ago
What process do plants undergo to produce chemical energy?
Ahat [919]

Answer:

i think photosynthesis

6 0
3 years ago
HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP MEEEEE
devlian [24]

still need help with this?

5 0
2 years ago
Other questions:
  • Which one of these aqueous solutions is a stronger electrolyte?
    11·1 answer
  • Identify the appropriate reagent (A-H) you would use to accomplish the given transformation. A. MeONa B. H2, Pt C. t-BuOK D. 1)
    7·1 answer
  • Write 3-5 sentences (in your own words) and answer the following question:
    13·1 answer
  • Why does the fact that Americans are using less fertilizer not indicate a decline in American farming?
    8·2 answers
  • In 1954, after he had helped develop the atomic bomb, j. robert oppenheimer was investigated and denied future access to classif
    5·2 answers
  • Hlo good evening everyone​
    15·2 answers
  • What is the temperature if 2L of 3moles HCl react with 2atm?
    8·1 answer
  • What is the net force acting on a 3000g sled that accelerated at 5 m/s2 ?
    11·1 answer
  • ASAP: The main difference between the gravitational force and electrical force is that
    6·1 answer
  • Which of the substances shown below most likely exhibit hydrogen bonding with other identical
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!