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
Papessa [141]
4 years ago
8

A sound wave will rebound when it encounters what?

Physics
2 answers:
Over [174]4 years ago
8 0
The sound wave will rebound when it is a barrier, hope this helps
goblinko [34]4 years ago
8 0

Answer: A barrier

Explanation: A sound wave requires medium to travel. It travels in air. Frequency is the number of cycles per second of a wave. A light is an electromagnetic wave which can travel through vacuum as well as medium. A sound rebounds when it encounters a barrier i.e. when it does not carry enough energy to travel through it.

Hence, the correct answer is a barrier.

You might be interested in
What happens inside someone's body when they danve
LUCKY_DIMON [66]
The body releases endorphins
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7B.5mv%7D%5E%7B2%7D%20%20%3D%20mgh" id="TexFormula1" title=" {.5mv}^{2} = mgh" alt=" {.5m
Katyanochek1 [597]

You said 0.5 · m · v² = m · g · h

Divide each side by 'm' :  0.5 · v² = g · h

Multiply each side by 2 :  v² = 2 · g · h

Square root each side :   v = √(2 · g · h)

You said that  g = 9.8 m/s²  and  h = 875 units

So  v = √(9.8 m/s² · 875 units)

v = √(8,575 m·unit/s²)

v = 92.6 / s² · √(m · unit)

8 0
3 years ago
The boiling point of ethanol is 78 ��
34kurt
  <span>The conversion for Kelvin from Celsius is simple since the units change at same rate (degree for degree) but haven't different zero reference. The Kelvin scale represents absolute zero. The celcius scale moves degree per degree with kelvin scale but has a zero based on freezing point of water. The conversion is 273 + (temperature in celcius) = temperature on kelvin scale. Note 273 is a rounded number to nearest whole number. The actual figure is a number with decimal. 273.15 can also be used if you want more significant figures. 

so 273 + 78C = 351 K </span>
7 0
3 years ago
Help meeeee!!!<br> ⇓⇓⇓⇓⇓
Dafna11 [192]

I believe you are correct, it is B: Diagnostic Services.

Diagnostic services are services like the staff at hospitals and the people who run machines that are related to medical needs.

<em>If this is incorrect, please, don't refrain to tell me.</em>

6 0
3 years ago
Read 2 more answers
What are the factors that influence the force of gravity
blsea [12.9K]
The strength of the gravitational force between two objects depend on two factors, mass and distance.
5 0
4 years ago
Read 2 more answers
Other questions:
  • A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s. the average power he develops during the lift is
    5·2 answers
  • A car traveling in a straight line at an initial speed of 8.0 meters per second accelerates uniformly to a speed of 14 meters pe
    9·2 answers
  • A 10.9 g object moving to the right at 18.5 cm/s makes an elastic head-on collision with a 17.1 g object moving in the opposite
    12·1 answer
  • You can see lightning before you can hear the thunder. Which is the best explanation for this?
    11·2 answers
  • The radioactive element radium (Ra) decays by a process known asalpha decay,in which the nucleus emits a helium nucleus. (Factoi
    12·1 answer
  • Cars driving 15.7 m/s on a flat ground drives off of 25.3 m High cliff how far from the base of the cliff does it land
    12·1 answer
  • State the term using to describe the turning force force exerted by the man
    13·1 answer
  • Is ambition a good or bad thing?
    7·2 answers
  • Moving east with a constant velocity of 30 m/s for 5 seconds. What is the object's
    9·1 answer
  • What do you think is the reason scientists use an ellipse rather than a circle as
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!