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
Luda [366]
3 years ago
7

A source produces 20 crests and 20 troughs in 4 seconds. The second crest is 3 cm away from the first crest.Calculate :

Physics
1 answer:
sineoko [7]3 years ago
3 0

Answer:

Solution given:

No of waves[N] =20crests & 20 troughs

=20waves

Time[T]=4seconds

distance[d]=3cm=0.03m

Now

<u>Wave</u><u> </u><u>length</u><u>=</u>3cm=3 × {10}^{ - 2}m

<u>Frequency</u>=\frac{No of waves}{time}

=\frac{20}{4}=5Hertz

and

Wave speed:wave length×frequency=3 × {10}^{ - 2}m×5=1.5 × {10}^{ - 1} \tt{ {ms}^{ - 1}}.

You might be interested in
Which wave diffracts the most when encountering an obstacle?
viva [34]

Answer;

-A wave with the longest wavelength.

Explanation;

-Diffraction is the apparent of wave through,around small obstacles and the spreading out of wave past small openings. When thinking of diffraction of a wave think of shining a flashlight around a corner. The light bends around the corner but there is a place where it is dark and the light does not hit. Diffraction of a wave is basically the wave bending around an object then dispersing out.

-The amount of diffraction (the sharpness of the bending) increases with increasing wavelength and decreases with decreasing wavelength. When the wavelength of the waves is smaller than the obstacle, no noticeable diffraction occurs.

8 0
3 years ago
What process modifies light waves to vibrate in a single plane
AnnyKZ [126]
This process is called polarization.
8 0
3 years ago
Can someone help me answer this??
Bingel [31]

Answer:

<h2>3,2 oky na dekh Lena ek bar</h2><h2>2,5</h2>
7 0
3 years ago
Water in a tank which is positioned 5 feet above the ground is _____ potential energy? (answers would be like thermal, electric,
LUCKY_DIMON [66]

Answer:

Mechanical

Explanation:

The tank is at rest. And energy of any substance at rest is known as potential energy.

Now, in forms of energy, potential energy is a type of mechanical energy.

Thus, the correct option is mechanical Energy.

8 0
3 years ago
What is 2,000m to km​
lesantik [10]

Answer: 2km

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Coherent, monochromatic light is incident on a pair of slits that are 0.3 mm apart. When light passes through the slits and stri
    9·1 answer
  • What forces below earth's surface shape landforms?
    8·1 answer
  • Which are descriptions of gravity on Earth? Check all that apply.
    5·2 answers
  • You have been posted to a remote region of space to monitor traffic. Near the end of a quiet shift, a spacecraft streaks past. Y
    13·1 answer
  • Laboratory measurements show hydrogen produces a spectral line at a wavelength of 486.1 nanometers (nm). A particular star's spe
    8·2 answers
  • Gamma rays and X–rays are similar because they both have
    5·1 answer
  • Which of these is described as force per unit charge on a positive test charge?
    9·1 answer
  • Water is entering the prism at a rate of A m^3/hr. The prism is empty at time 0. Express the depth d of the water in meters in t
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Csf%20%7B%20%5Cfcolorbox%7Bgreen%7D%7Bg%7D%7B%20What%20are%20impulses%3F%7D%7D%20" id="Te
    11·1 answer
  • Why doesn’t the total pressure increase when more gas is added to the chamber? (hint: what would you see if the volume of the ch
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!