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
elena-s [515]
3 years ago
12

A train sounds its whistle at a constant frequency as it passes by the platform. Compared to the sound emitted by the whistle, t

he sound that people on the platform hear as the train moves away has a frequency that is ...
-higher
-the same
-lower
-exactly half
Physics
1 answer:
Fittoniya [83]3 years ago
4 0

Answer: Higher.

Explanation: The doppler effect essentially. "The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding."

You might be interested in
Mr Bissell creates a diagram of electric and magnetic fields to teach his students about the concepts. He includes the similarit
tamaranim1 [39]

The similarity between electric field and magnetic field is that both fields attract or repel charges in the field.

<h3>What is electric field?</h3>

An electric field is a region of space that surrounds electrically charged particles and exerts force on other charged particles within the filed.

<h3>What is magnetic field?</h3>

A magnetic field is a vector field that describes the magnetic influence on moving electric charges.

<h3>Similarity between electric field and magnetic field</h3>

The similarity between electric field and magnetic field is that both fields attract or repel charges in the field.

Learn more about electric and magnetic field here: brainly.com/question/1594186

3 0
2 years ago
The formula d = rt gives the distance d traveled in time t at rate r. A train travels 163.2 miles in 2.4 hours, traveling at a c
Alex17521 [72]
Since d= 163.2 and t = 2.4, we divide 163.2 by 2.4 to get 68 miles per hour.
6 0
3 years ago
Since our number system is on a base-10 notation, we do not need to learn scientific notation.
Tom [10]
Pretty sure its false
3 0
3 years ago
Read 2 more answers
Steam is more dangerous than the boiling water because it has more a.Temperature
balandron [24]

Answer:

c) heat

Explanation:

steam has more heat energy than boiling water due to its latent heat of vaporisation.

4 0
3 years ago
Why do we need to conserve water?It is an unlimited resource.It is a limited resource.There is a lot of water.There is no need t
olchik [2.2K]

Answer:

conserving water is important because it keeps water pure and clean while protecting the inviorment

6 0
3 years ago
Other questions:
  • A person standing for a long time gets tired when he does not appear to do any work .why?​
    7·1 answer
  • In your own words, explain what conservation of energy means. Also, give an example of the conservation of energy using somethin
    6·1 answer
  • The force created by moving, charged particles is called __________.
    10·2 answers
  • A 440 g model rocket is on a cart that is rolling to the right at a speed of 4.0 m/s. The rocket engine, when it is fired, exert
    11·1 answer
  • If a car is traveling at 35 mph how far will the car travel in 2.5 hours
    13·1 answer
  • The velocity v of the flow of blood at a distance "r" from the central axis of an artery of radius "R" is: v = k(R^2^ - r^2^) wh
    10·1 answer
  • A satellite is one Earth radius above the surface of Earth. How does teh acceleration due to gravity at that location compare to
    13·1 answer
  • If object a has more mass than object b, does object a contain more matter? explain why it is so.
    9·1 answer
  • Brandonyaelcamposbarrios Hsjd
    6·2 answers
  • Gina has measured that the average voltage across a chemical battery she built is 2.21 volts. If the actual value is 2.04 volts,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!