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
tatyana61 [14]
3 years ago
12

How does the strength of a sound field 1 meter from its source compare with its strength 4 meters away?

Biology
1 answer:
Katarina [22]3 years ago
4 0
Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:

I
=
(
Δ
p
)
2
2
ρ
v
w
You might be interested in
How do changes in the environment, interactions, and disturbances influence ecosystem stability?
GenaCL600 [577]
It effects the environment because it can cause unstability in the food web and biotic and abiotic factors
6 0
3 years ago
Read 2 more answers
The hydrosphere refers to the total amount of water on Earth, including liquid, gas, and solid forms. Which is one way the
Zielflug [23.3K]

Answer:

The correct option is;

Glaciers that once covered South Africa have melted and can no longer form.

Explanation:

The Karoo Supergroup that formed hundres of millions of year ago covered the most part of South Africa. The Tillite debris from melting glaciers, in Dwyka Tillite are located at the bottom layers of the Karoo Supergroup, which is an indication that millions of years ago, South Africa was under extensive glacier coverage formed during the movement of the continent past the South Pole

The eventual arrival of the continent to temperate regions away from the South Pole resulted in the melting of the glaciers from which a huge swamp was formed.

8 0
3 years ago
Read 2 more answers
Bases in DNA are held together by which bond?
DIA [1.3K]

Answer:

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Explanation: hydrogen bonds

4 0
3 years ago
Which of the following best explains why the Inuit principally relied on hunting for survival? Group of answer choices A.Tundra
Allushta [10]

Answer:

Option (A)

Explanation:

The Inuits refers to those people that live in the Arctic region, such as Greenland, the northern region of Canada, as well as Alaska. The region in which they live can be considered as tundra, which is characterized by the presence of low temperature, dry wind, shorter duration of seasons, and lack of vegetation. This type of region is found in the polar and near-polar areas and in the high altitude areas.

The climate of tundra is very cold, and there occurs the layer of permafrost in the soil, and it does not provide the essential conditions for the growth of plants. The growth of crops is hindered by the shorter season, lack of sunlight and low precipitation.

This is why the Inuits are dependent on hunting for heir survival

Thus, the correct answer is option (A).

8 0
3 years ago
The physical need to eat food is called A. hunger B. appetite C. Psycological desire. D. nutritional value A?
maw [93]
The physical need to eat food is called hunger
4 0
3 years ago
Read 2 more answers
Other questions:
  • Mutations always happen when DNA has been damaged in some way. True or False?
    7·1 answer
  • Which of the following statements about idea models is not true? a. Idea models depict a concept. b. Idea models are typically u
    11·2 answers
  • Using a refillable beverage container (returnable bottles) would be an example of __________ materials.
    14·1 answer
  • How are other organisms able to see in wavelengths that humans cannot?
    9·1 answer
  • Why are cellular respiration and photosynthesis considered opposite reactions
    6·2 answers
  • During transcription, the mRNA strand elongates in the?
    8·1 answer
  • design a bacterium that will be genetically engineered. describe what it will do and how it will help the environment
    7·1 answer
  • Plants appear green because they do not absorb the green wavelengths of light what happens to those green light waves when they
    15·1 answer
  • The energy stored in food molecules in living cells is gradually released in a series of linked chemical reactions called a ____
    15·1 answer
  • Clara is a vegan and she does not drink milk, a food advertised as a best source of calcium. But she is not worried too much sin
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!