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
marin [14]
3 years ago
15

An observer notices that 12 waves pass by in 4 seconds. What is the frequency of these waves? 0.33 Hz 16 Hz 48 Hz 3 Hz

Physics
1 answer:
Dennis_Churaev [7]3 years ago
8 0

Answer:

Frequency = 3 Hz

Explanation:

Frequency is a measure of Hertz. Recall that Hertz is the unit expressing cycles/second, where one second is the denominator of the fraction for simplicity. If there are 12 waves every four seconds, and one wave represents one cycle, dividing 12 waves by 4 seconds will give the answer of 3 waves (or cycles) per one second.

You might be interested in
If you were sitting on the couch and someone said, “You have no energy.” Would you agree or disagree with this statement
Allisa [31]
I would disagree with that statement.

3 0
3 years ago
Read 2 more answers
list all the storage forms of energy that forms of energy that you are familiar with. for each storage form, give an example of
ella [17]

Storage form of energy:

  • Potential energy
  • Nuclear energy
  • electrical energy
  • thermal energy
  • magnetic energy

Potential energy:

All stationary objects are having potential energy stored in it. This energy can be transferred in form of kinetic energy when it comes in the motion from rest. Example, An object placed at height h having potential energy in it. When it comes in motion from the rest the potential energy is converted into kinetic energy.

Nuclear energy:

Nuclear energy is energy that is stored in nucleus of any element. Example, fusion reaction on sun gives earth solar energy.

Electric energy:

Electrical energy is due to movement of the electrical charges. Example, In elctrical batteries electrical energy is stored.

Thermal energy:

Thermal energy is the internal energy of a substance that is transferred to other substance in the form of heat. Example, on heating water is a beaker stem energy is developed.

Magnetic energy:

Magnetic energy is the potential energy stored in the magnetic field. Example, using magnetic energy electric field is produced according to Faraday's law.


8 0
3 years ago
Chemicals in the air can combine with rain to produce acid rain, which is harmful to the environment. Which of these is most lik
irinina [24]
Hi there!

Normal rain has a pH between 5.0 and 5.5, which is slightly acidic on the pH scale. Acid rain on the other hand has an average pH of 4.0, much more acidic than your average rain.

Therefore, the most likely pH of acid rain would be 4.0.
7 0
3 years ago
What is shown in the diagram? A). A turbine B). An electromagnet C). A motor D). A generator
AlexFokin [52]

Answer:

I just answered a question like this. It should be B. An electromagnet :)

Explanation:

4 0
3 years ago
Which statement about the composition of ocean and water is true?
Allushta [10]
I think B would be the best answer
7 0
3 years ago
Other questions:
  • Energy in the form of motion is potential energy.<br> True<br> False
    12·1 answer
  • A student had a sample of pure water, and added an unknown substance to it. the student noticed that the hydroxide ion concentra
    9·2 answers
  • A student needs help completing an energy transfer diagram for a ceiling fan. Which BEST fills in the blanks labeled M and N to
    12·2 answers
  • 20 POINTS! TRUE OR FALSE:
    6·1 answer
  • A lead ball is dropped 30 feet from a church tower. If the acceleration due to gravity is 9.8m s^-2, how long does it take the b
    12·1 answer
  • How does the distance a car travels change as it slows down
    11·2 answers
  • "Which of the following statements are true?
    5·1 answer
  • Which of the following help the President carry out the laws of the land?
    10·2 answers
  • Convert 1 million inches into miles.
    5·2 answers
  • Determine the surface gravity of Earth. Its mass is 6.0 x 1024 kg and its radius is 6.4 x 106 m.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!