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
Amiraneli [1.4K]
3 years ago
9

The standard measure used to compare sound intensities is the ______ .

Physics
2 answers:
german3 years ago
6 0

Answer: Decibels

Explanation:

Decibel is the unit which used to measure intensity of sound. Sound intensity is the power carried by the sound waves per unit area perpendicular to it.

I = \frac{P}{A} measured in W/m²

In decibels:

I (dB) = 10 log_{10}\frac{I}{I_o}

With each unit rise of decibel, the sound intensity varies by a factor of 10.

uranmaximum [27]3 years ago
4 0
The answer is Decibels. <span />
You might be interested in
Two samples of water are mixed together.
Anon25 [30]
<h3><u>Answer;</u></h3>

A.75°C

<h3><u>Explanation</u>;</h3>

Let the change in temp of cold water be  x degrees,

while that of  hot water be 100 - x degrees.

Heat exchange =  mcΔt

Ice

Δt = x

m = 0.50 kg

c = 4.18 kJ/kg*°C

Hot water

Δt = 100 - x

m = 1.5 kg

c = 4.18

But;

Heat lost = heat gained

0.50 * c * x = 1.5 * c * (100 - x)          

0.50 *x = 1.5*(100 - x)                          

0.5x = 150 - 1.5x                                  

0.5x + 1.5x = 150 - 1.5x + 1.5x            

2x = 150                                              

x = <u>75° C</u>

Hence; the equilbrium temperature will be 75° C

7 0
3 years ago
A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground
pogonyaev
T = 3.5 secs

Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s
7 0
3 years ago
Read 2 more answers
LAST ONE! ASAP PLEASE
Doss [256]

Answer:

There are so many questions which one you don't know

4 0
3 years ago
Read 2 more answers
I need help please, thank you!!!
stiks02 [169]

Answer:

135 mph

because 7+9=16

8 is left

if 7=40

9=50

then 8=45

add 40+50+45mph

=135

4 0
2 years ago
3. Which one of these has the most inertia?
Arte-miy333 [17]

b. A Boeing 747 airplane

Explanation:

The Boeing 747 airplane will have the most inertia of all. Inertia is the tendency of an object to remain at rest or uniform motion.

  • Newton's first law of motion is also regarded as the law of inertia.
  • It states that "an object will remain at rest or uniform motion motion unless acted upon by an external force".
  • A body that has a large mass will be more resistant to any external force that acts on it.
  • The Boeing 747 has the most mass of all and will have the most inertia.

Learn more:

Inertia brainly.com/question/691705

#learnwithBrainly

3 0
3 years ago
Other questions:
  • Do roses have prokaryotic cells
    12·1 answer
  • How much time does it take for tweety’s bird cage to hit the ground after it was dropped if it reached a velocity of 22 meters p
    14·1 answer
  • A 3.00 kg cart on a frictionless track is pulled by a string so that it accelerates at 2.00m/s/. What is the tension in the stri
    15·1 answer
  • Matter is anything that...
    11·1 answer
  • What waves travel through a medium? Transverse, longitudinal, surface, electromagnetic, and mechanical are the choices
    15·1 answer
  • In which scenario is the least amount of work done on a crate?
    8·1 answer
  • 20. A photographer takes an average of 15 pictures per session. The total
    14·1 answer
  • State the Newton's first law of motion in words and in mathematical form.
    11·1 answer
  • What is hydrology?
    15·1 answer
  • Find the first three harmonics of a string of linear mass density 2. 00 g/m and length 0. 600 m when the tension in it is 50. 0
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!