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
Dima020 [189]
3 years ago
13

In which one of the following locations can a person hear the echo of a sound?A. At least 33.2 meters behind the reflecting surf

ace
B. At least 16.6 meters in front of the reflecting surface
C. Less than 33.2 meters behind the reflecting surface
D. Less than 16.6 meters in front of the reflecting surface
Biology
2 answers:
valentinak56 [21]3 years ago
8 0
<span>The location in which a person is more likely to receive an echo of the soud being sent is at least 16.6. meters in front of the reflecting surface. Therefore, the answer is to this item is letter A. The speed of sound without any interference is only about 340 m/s traveling through the vibration of the media in which it passes through. </span>
NNADVOKAT [17]3 years ago
7 0

The right answer is B. At least 16.6 meters in front...

The sound moves in the air at 340 m / s, and the ear can only hear the echo if it returns at least 1 / 10th after its emission, a distance of at least 16.6 meters (or 17 meters) with reflective surface.

You might be interested in
If a portion of a DNA strand has the base sequence ACGACG, what will be the base sequence of the mRNA strand transcribed? A) TCG
choli [55]
Its D) UGCUGC because this sequence is the mrna if it was the dna sequence it'd be B but its definetly D
8 0
3 years ago
________ surrounds and protects the embryo.
lesantik [10]
The answer is C. Amniotic membrane. It is the <span>Amniotic membrane that surrounds and protects the embryo. It is the innermost layer of the placenta. it consist thick basement of membrane that protects the embryo from any possible harm.

</span>
4 0
2 years ago
How long does a mayfly live as an adult? *
Luden [163]

Answer:

Adults will live only a day or so, but the aquatic larvae lives for about a year

Explanation:

5 0
2 years ago
Read 2 more answers
Graphs are _____ of a relationship
Elena-2011 [213]

Answer: Graphs are diagrammatic representation of relationships.

Explanation: Have a great day!!!! Hope this helps.

7 0
3 years ago
Read 2 more answers
The integumentary system is an example of _____.
Fittoniya [83]

Hair, skin, glands, nerves, and nails. And also it’s main function is to act as a barrier to protect the body from the outside world.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Identify the abiotic limiting factor from the choices below.
    10·2 answers
  • 13)
    10·1 answer
  • How are selective breeding and natural selection similar how are they different?
    9·1 answer
  • How do the expected results differ from the observed results?
    15·1 answer
  • Meteorology is best defined as
    8·2 answers
  • The slower an object moves the more kinetic energy it has.<br><br> True<br><br> False
    12·2 answers
  • In one experiment, 100g of starch was broken down by the enzyme in 8 minutes. Calculate the rate of this reaction in terms of am
    9·1 answer
  • Which phrases describe all the outer planets’ motion? Select two options.
    8·2 answers
  • A father possesses an X-linked disorder. What is the chance that his son will inherit this genetic abnormality from the father?
    13·2 answers
  • Need help with this one :)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!