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
liubo4ka [24]
3 years ago
15

By how many decibels do you reduce the sound intensity level due to a source of sound if you triple your distance from it? assum

e that the waves expand spherically.
Physics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

New sound intensity level after the move is

                          10 log (1/3²)

                       =  -20 log (3)

                       =  -20 (0.4771)  =   9.54 dB LOWER than before the move.
You might be interested in
How much power does it take to lift a 30.0 kg 10.0m high in 5 seconds​
LekaFEV [45]

Answer:

P = 589 (W)atts

Explanation:

work done = 30.0 kg(9.81)N/kg(10.0) m = 2,943 J

Power is the rate of doing work

P = 2943 J / 5 s = 588.6 J/s

8 0
3 years ago
The land area that supplies water to a river system is called
PIT_PIT [208]
A watershed supplies water to a river system. 
5 0
3 years ago
Read 2 more answers
IF ANYONEE HAS DONE THE MOMENTUM LAB PRACTICAL IN PHYSICS CAN YOU PLEASEEEEE GIVE ME THE ANSWERS I AM SOOOO LOSTT RNN :(
oksian1 [2.3K]

These are the correct answers. I couldn't get the rest of the answers


6 0
4 years ago
Your friend says that the primary difference between a solid and a liquid is the kind of atoms in the material. Do you agree or
Alex Ar [27]

Answer:

Answered

Explanation:

I disagree with my friend because, the primary difference is not in the kind of atoms, rather it is the arrangement of atoms and molecules that distinguishes solids and liquids.

Atoms are closely packed in solid and hence large cohesive forces act between atoms in solids whereas in liquids atoms are at a distance from each other, hence, less cohesive force act between it's atoms. Moreover, due to loose packing in liquids atoms are free to move in space and hence liquids can flow whereas solids cannot.

8 0
4 years ago
1<br> Verify the identity. Show your work.<br><br> cot θ ∙ sec θ = csc θ
Fittoniya [83]
To verify the identity, we can make use of the basic trigonometric identities:
cot θ = cos θ / sin θ 
sec θ = 1 / cos <span>θ
csc </span>θ = 1 / sin θ<span>

Using these identities:
</span>cot θ ∙ sec θ = (cos θ / sin θ ) (<span> 1 / cos </span><span>θ)
</span>
We can cancel out cos <span>θ, leaving us with
</span>cot θ ∙ sec θ = 1 / sin θ
cot θ ∙ sec θ = = csc <span>θ</span>
6 0
4 years ago
Other questions:
  • Two extremely flat glass plates, 10.0 cm wide, touch at one end but are separated by a thin wire at the other end, forming a wed
    10·1 answer
  • A book with a mass of 2.0 kg is pushed along a table. If the net force on the book is 1.0n what is the books acceleration
    14·1 answer
  • What does a forensic anthropologist do?
    15·1 answer
  • Why are force fields necessary to describe electric force?
    14·1 answer
  • The effectiveness of biofeedback has been a subject of controversy because biofeedback __________.
    15·2 answers
  • What type of plant boundary is associated with the formation of an ocean boundaries?
    14·1 answer
  • Physics question......
    5·1 answer
  • 1- charging by touch occurs when electrons are transmitted by direct contact.
    8·1 answer
  • Clara and Eli used materials they could find at home to make a simple seismograph. As Clara pulls the strip of paper through the
    6·1 answer
  • Waves of wavelength 24 cm and amplitude 3.0 em are used to create a standing wave. The distance from one node tothe next in the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!