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
katovenus [111]
2 years ago
8

An echo is not heard in a small room.why ? give reason​

Physics
2 answers:
JulsSmile [24]2 years ago
7 0

Answer:

They can't hear an echo in small room because in it the sound can't be reflected back. For an echo of a sound to be heard,the minimum distance between the source of sound and the walls of the room should be 17.2 m.

hopw it helps

Stella [2.4K]2 years ago
7 0
The room is too small it has to be ag least 17.2 meters for the noise to bounce
You might be interested in
A motorist drives along a straight road at a constant speed of 15 m/s. just as she passes aparked motorcycle police officer , th
allsm [11]

Explanation:

Distance traveled by motorist =(15.0m/s)t

Distance traveled by policeman =1/2(2.00m/s2)t2

(a) Intercept occurs when 15.0t =t2or t=15.0s.

(b) x(officer)=1/2(2.00m/s2)t2= 225m

4 0
1 year ago
How was bohr atomic model similar to Rutherford's model​
Juliette [100K]
Both believe that an atom contains negative charges and positive charges.
But both were different in the placement of charges
6 0
3 years ago
Read 2 more answers
A trunk rotation is a common dyamic flexibility assessment ture or false
Ilia_Sergeevich [38]

True. It would be false if the statement was "trunk rotation is the most common <em>static</em> flexibility assessment."


So, you're answer should be "true". Hope that helped!

6 0
3 years ago
1- A 30 gram bullet travels at 300 m/s. How much kinetic energy does it have?
labwork [276]

Answer:

1.35 kJ  

Explanation:

KE = ½mv² = ½ × 0.030  kg × (300 m·s⁻¹)² = 1350 J = 1.35 kJ

7 0
3 years ago
Read 2 more answers
Why quantity refractive index dooesn't have unit
ASHA 777 [7]
Refractive Index is a ratio of two similar physical quantity which is dimension less
refractive index = sin I / sin r

therefore it doesn't have a unit.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Can spoon ring like a bell prove it
    7·1 answer
  • Calculate the wavelengths of the first five members of the Lyman series of spectral lines, providing the result in units Angstro
    6·1 answer
  • Which of the following is most responsible for the magnetic behavior of materials?
    6·1 answer
  • Self-fulfilling prophecy is a primary example of the capability of language to .
    14·1 answer
  • In 1985, Said Aouita set the world record for the 1500m race in a time of 3 minute 29.46 second ? What was his average speed ?
    14·1 answer
  • PHYSICAL SCIENCE: What are some methods used to control the types and sources of pollution?
    11·1 answer
  • A uniform sphere (I = 2/5 MR 2 ) rolls down an incline. (a) What must be the incline angle if the linear acceleration of the cen
    14·2 answers
  • If two objects are the same size but one object is 3 times hotter than the other object, the hotter object emits If two objects
    8·1 answer
  • How do unicellular organisms reproduce?
    10·1 answer
  • 3. Check that the dimensions of both side of the equations below are agreeing to each other:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!