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
Murrr4er [49]
3 years ago
15

Ab observer detects an apparent change in the frequency of sound waves produced by an airplane passing overhead. This phenomenon

illustrates
A. the doppler effect
B wave amplitude increase
C the refraction of sound waves
D Wave intensity increase
Physics
1 answer:
ss7ja [257]3 years ago
8 0
Hello There

Answer: The Doppler effect

Reason: The Doppler effect is an increase or decrease in the frequency of sound, light,  or waves as the source and observer move to each other. An example would be a firetruck with its siren on driving away from you.

I hope this helps
-Chris
You might be interested in
A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Calculate the acceleration of th
ankoles [38]

Answer:

10 km/h

Explanation:

3 0
3 years ago
When opening a door, you push on it perpendicularly with a force of 57.0 n at a distance of 0.470 m from the hinges. what torque
TiliK225 [7]
<span>Torque = force * distance from axis of rotation. Multiply. If it's not perpendicular, you multiply that with the sine of the angle between the force and the perpendicular direction. T= 0.470*57*Sin 90 = 26.79 N</span>
3 0
3 years ago
The Earth's diameter at the poles is _____.
maria [59]
Less than it’s diameter at the equator
4 0
3 years ago
Read 2 more answers
NUCLEAR POWER PRODUCES LESS TOXIC SULFUR THAN COAL BURNING ELECTRICITY TRUE OR FALSE
konstantin123 [22]
True because a nuclear power produces tons of high level radioactive waste that has to be disposed of carefully
8 0
3 years ago
Read 2 more answers
A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the temperature rises to 40°C in summer? The
xenn [34]

Answer:

ΔL = 0.66 m

Explanation:

The change in length on an object due to rise in temperature is given by the following equation of linear thermal expansion:

ΔL = αLΔT

where,

ΔL = Change in Length of the bridge = ?

α = Coefficient of linear thermal expansion = 11 x 10⁻⁶ °C⁻¹

L = Original Length of the Bridge = 1000 m

ΔT = Change in Temperature =  Final Temperature - Initial Temperature

ΔT = 40°C - (-20°C) = 60°C

Therefore,

ΔL = (11 x 10⁻⁶ °C⁻¹)(1000 m)(60°C)

<u>ΔL = 0.66 m</u>

6 0
4 years ago
Other questions:
  • Can anyone help with these questions please
    13·1 answer
  • Can someone plss helpp?? :)
    5·1 answer
  • Taya served a volleyball with a mass of 2.1kg the ball leaves her hand with a speed of 30 m/s what type of energy does the ball
    14·1 answer
  • Describe the trichromatic of color vision
    10·2 answers
  • if the net force of an object is in a positive direction what will the direction of the resulting acceleration be
    9·1 answer
  • HELP ASAP PLEASE!!!
    6·2 answers
  • An explosion in a rigid pipe shoots three balls out of its ends. A 6 gam ball comes out the right end. A 4 gram ball comes out t
    14·2 answers
  • If Earth’s Moon were replaced with a typical neutron star, what would the angular diameter of the neutron star be as seen from E
    7·1 answer
  • How does friction affect the kinetic energy of an object?
    9·1 answer
  • What can you infer from the statement, velocity is an object is zero?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!