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
Pie
3 years ago
5

Suppose these waves represent the sound of a siren on a passing ambulance. Which wave represents the sound of the siren after it

has passed you? Explain your answer.
The wave A has a higher frequency and wave B has a lower frequency.

I REALLY need help. Please.
Physics
2 answers:
sergeinik [125]3 years ago
4 0
The answer is wave B has a lower frequency.  Suppose these waves represent the sound of a siren on a passing ambulance. Wave B (lower frequency) represents the sound of the siren after it has passed you.  The ambulance moving towards the observer produces a higher than normal frequency, and the ambulance moving away produces a lower than normal frequency.
sergey [27]3 years ago
4 0

Answer:

The correct answer is "wave B has a lower frequency."

Explanation:

The Doppler effect is defined as the change in apparent frequency of a wave produced by the relative movement of the source with respect to its observer. In other words, this effect is the change in the perceived frequency of any wave movement when the sender and the receiver, or observer, move relative to each other.

This is the effect that occurs in this case. And it is explained as follows: When the ambulance approaches the observer, the wave "compresses", that is, the wavelength is short, the frequency high and, therefore, the tone of the perceived sound will be sharp. On the other hand, when the ambulance moves away from the observer, the wave "decompresses", that is, the wavelength is long and the frequency low.

Then the correct answer is "wave B has a lower frequency."

You might be interested in
Of the following, which generally causes the greatest damage?
maksim [4K]
I guess it is a: seismic waves
3 0
3 years ago
What is the difference between a wedge and a screw?
Anvisha [2.4K]
<span>A wedge is a double sided screw basically. Therefore, the difference is the number of sides.</span>
7 0
3 years ago
A plane travelling at 63 m/s[S] down a runway begins accelerating uniformly at 2.8 m/s?[S]. How far does it travel
AVprozaik [17]

Answer:

270 m

Explanation:

Given:

v₀ = 63 m/s

a = 2.8 m/s²

t = 4.0 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (63 m/s) (4.0 s) + ½ (2.8 m/s²) (4.0 s)²

Δx = 274.4 m

Rounded to two significant figures, the displacement is 270 meters.

6 0
3 years ago
The first step in a star formation is ______?
Mariana [72]
First look at the star
8 0
3 years ago
Read 2 more answers
The sine ratio is the ratio formed by the hypotenuse over the side opposite the acute angle. True False
Paha777 [63]

Answer:False

Explanation:

The given statement is false

because the sine ratio is the ratio formed by the side opposite the acute angle to the hypotenuse

\sin (acute\ angle)=\frac{Perpendicular}{hypotenuse}  

4 0
3 years ago
Other questions:
  • State Archimedes' principle.​
    14·2 answers
  • Two ways biodyversity is valuable
    15·1 answer
  • What is the hottest layer in the Sun's atmosphere?
    6·2 answers
  • Calculate the average speed 
    7·1 answer
  • Compared with a car moving at some original speed, how much work must the brakes of a car supply to stop a car that is moving tw
    11·1 answer
  • Select all of the statements that are true.
    12·1 answer
  • 8. Simple machines make a job easier to perform by
    5·1 answer
  • People under going physical therapy after an injury often find it helpful to perform exercise in water? Why?
    15·1 answer
  • What is the SI unit for moment​
    14·1 answer
  • What do you think a force diagram might look like for a hit that causes a concussion? Draw a diagram. Consider only the person’s
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!