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
Setler79 [48]
3 years ago
9

The speed of a wave is 40 m/s. If the wavelength is 80 centimeters, what is the frequency of the wave?

Physics
1 answer:
Vedmedyk [2.9K]3 years ago
7 0
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>

The speed of a wave is 40 m/s. If the wavelength is 80 centimeters, what is the frequency of the wave ?

<h2><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u>:-</h2>

<h3>Given:-</h3>

Velocity (V) = 40 m/s

Wavelength (\lambda) = 80 cm = 0.8 m

<h3>To Find:-</h3>

The frequency (F) of the wave.

<h2>Solution:-</h2>

We know,

\bf V \: = \: F \: × \: \lambda

40 = F × 0.8

F = \frac{40}{0.8}

F = 50

<h3>The frequency of the wave is <u>5</u><u>0</u><u> </u><u>H</u><u>z</u>. [Answer]</h3>
You might be interested in
If you wanted the pitch of a horn to drop relative to an observer, which way would you move the horn, relative to where that obs
Vladimir [108]
We assume that horn releases sound of constant frequency. In order for observer to observe different frequency either horn or observer or both must move.

This happens due to Doppler effect. It states that when position of source of sound and observer relative to each other changes, the observed frequency also changes. If the source emits sound of constant frequency than observed frequency will be either higher or lower than original.

When distance between source and observer increases the observed frequency will be lower. This is because same number of sound waves must cover greater distance so they have greater wavelength.
When distance between source and observer decreases the observed frequency will be higher. This is because same number of sound waves must cover smaller distance so they have smaller wavelength. 

Wavelength and frequency are inversely proportional meaning when one increases the other drecreases.

From this explanation we can find answer for our question. <span>If we wanted the pitch of a horn to drop relative to an observer we need to move horn away from an observer.</span>
3 0
2 years ago
How far will a man travel in 15 min driving his car down the highway at an average speed of 24 m/?s
emmasim [6.3K]

Answer:

21.6 km

Explanation:

15×60×24 = 21600 m

\frac{21600}{1000}= 21.6 km

7 0
3 years ago
A ball is rolling down a hill. Wich action would slow the ball down?
Feliz [49]

Answer:

Friction Force

hope this helped :)

Explanation:

4 0
2 years ago
Read 2 more answers
Which of the following is not one of the observed characteristics of our solar system?
Sindrei [870]
<span>The characteristic not observed is the sun and planets rotate in the same direction. The planets in the solar system go around the sun. The sun is in a fixed position relative to planets. The time one planet takes to go around the sun is a year on that planet. the suns gravity keeps the solar system together and th planets revolving aroud it </span>
3 0
3 years ago
Read 2 more answers
Who pays for Government workers that work on alcohol impaired driving cases?
Shalnov [3]

Answer: Taxpayers

Explanation:

Taking alcohol before driving or while driving is dangerous and has resulted in lots of accidents and deaths. Alcohol tampers with the normal functioning of the brain, and also impairs ones reasoning.

Alcohol impaired driving cases handled by government officials are paid for by the taxpayers. A tax is the levy that the people in the country pays. Those funds are used in handling different government objectives and this is one of such ways.

8 0
2 years ago
Other questions:
  • What part of earth systems interact to form a storm like this hurricane near Florida
    6·1 answer
  • How might you describe the mathematical procedure of finding the displacement when an object travels in two opposite directions?
    14·1 answer
  • What factors affect the ability of a substance to transfer thermal energy to heat or be heated by it's surroundings?
    15·1 answer
  • This is my exam question be serious
    15·1 answer
  • Two massive, positively charged particles are initially held a fixed distance apart. When they are moved farther apart, the magn
    7·1 answer
  • A proposed electric vehicle makes use of storage batteries as its source of energy. Its mass is 1560 kg and it is powered by 20
    5·1 answer
  • A 0.l ‑kilogram block is attached to an initially unstretched spring of force constant k = 40 N/m as shown right. The block is d
    6·1 answer
  • What is the name of the theory that explains how forces deep within earth can cause ocean floors to spread continents to move
    8·1 answer
  • The scale on the horizontal line axis is 5s per division on the vertical axis 9 m per division
    11·1 answer
  • A jet flew from Kennedy Airport in New York City to Orlando, Florida, in
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!