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
Crazy boy [7]
2 years ago
9

The sound intensity at a distance of 19 m from a noisy generator is measured to be 0.24 W/m2. What is the sound intensity at a d

istance of 27 m from the generator
Physics
1 answer:
34kurt2 years ago
3 0

Answer:

0.1111 W/m²

Explanation:

If all other parameters are constant, sound intensity is inversely proportional to the square of the distance of the sound. That is,

I ∝ (1/r²)

I = k/r²

Since k can be the constant of proportionality. k = Ir²

We can write this relation as

I₁ × r₁² = I₂ × r₂²

I₁ = 0.25 W/m²

r₁ = 16 m

I₂ = ?

r₂ = 24 m

0.25 × 16² = I₂ × 24²

I₂ = (0.25 × 16²)/24²

I₂ = 0.1111 W/m²

You might be interested in
A 1-kilogram ball has 8 joules of kinetic energy.What is it speed?
scZoUnD [109]
K.E=0.5*mv²
v=square root 2ke/m
v= square root 2*8J/1 kg
v= 4 m/s
3 0
2 years ago
Objects that have value in themselves and that are also used as money is the definition for _____.
Yuki888 [10]
   Objects that have value in themselves and that are also used as money is the definition for  commodity money. Hope this helped :)
3 0
3 years ago
Read 2 more answers
Blow up a balloon and rub it against your shirt a number of times. In doing so you give the balloon a net electric charge. Now t
tamaranim1 [39]
<span>Balloons are blown up, and then rubbed against your shirt many times. The balloon then touches the ceiling. When released, the balloon remains stuck to the ceiling. The balloon is charged by contact. The ceiling has a neutral charge. The charged balloon induces a slight surface charge on the ceiling opposite to the charge on the balloon. Balloon and ceiling electric charges are opposite in sign, so they will attract each other. Since both the balloon and the ceiling are insulators, charge can not flow from one to the other. The charge on the balloon is fixed on the balloon and the charge on the ceiling remains fixed to the ceiling. It just so happens that the<span> electrostatic force the ceiling exerts on the balloon is sufficient to hold the balloon in place (i.e. overcomes gravity, etc.).</span></span>
8 0
3 years ago
True or false?
blsea [12.9K]

Answer:

True

Explanation:

7 0
2 years ago
Read 2 more answers
How long will it take to fall 50 m?
Ad libitum [116K]

Answer:

down below

Explanation:

Since we aren't the given the time, lets say that an object to 25 seconds to fall 50 meters. We can use the formula [ s = d/t ] to solve.

s = 50/25

s = 2

Therefore, the object was falling at a rate of 2 meters per second.

Best of Luck!

6 0
2 years ago
Other questions:
  • cutting paper into a snowflake is an example of a chemical change put the thoughts then put do agree disagree or depends when th
    6·1 answer
  • In this excerpt from “an episode of war” by stephen crane, why does the doctor promise not to amputate the lieutenant’s arm?
    13·2 answers
  • In an experiment , which variable do you change
    9·1 answer
  • Which of the following is an example of a compound C2, O2, He2, CO2?
    10·2 answers
  • One safety precaution that you would take when carrying out experiments using resistance wires
    7·1 answer
  • Work done by friction?
    12·2 answers
  • Write a reaction equation to show HCO3 acting as an acid​
    13·1 answer
  • The term 'balanced diet' best means a person is getting which of the following? O A fewer nutrients and vitamins than it needs.
    13·2 answers
  • Why is it better to drive a large SUV in icy conditions with chains on the tires, instead of a small car with old tires? Explain
    13·1 answer
  • An astronaut who is repairing the outside of her spaceship accidentally pushes away a 99.1 cm long steel rod, which flies off at
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!