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
Vika [28.1K]
3 years ago
15

Find the frequency of a wave of wavelength 2.5m and speed 400 m/s

Physics
1 answer:
Sedaia [141]3 years ago
7 0

Answer:

The frequency of wave is 160Hz.

Explanation:

Given that the formula of speed is V = f×λ where V represents speed, f is frequency and λ is wavelength.

So first thing, you have to make frequency the subject by dividing wavelength on both sides :

v = f \times λ \:

v \div  λ =  f \times λ \div λ

f =  \frac{v}{λ}

Next you have to substitute the value of v and f into the formula :

Let λ = 2.5m,

Let v = 400m/s,

f =  \frac{400}{2.5}

f = 160Hz

You might be interested in
Why are such scientific advances still valuable?
Sergeu [11.5K]
Because the more advances made in the world means the more we can learn on how things work and how we can better the lives of humans and other species. If we didn't have scientific advancements we wouldn't have cell phones, electric, tv, car, computers, ect. We would still be living in Cave man era with clubs and horrible language skills.
4 0
3 years ago
What is warmer during the night: land or sea/ocean?
kupik [55]
I do believe the answer is land because the ocean/sea gets cold when its night. So the answer is land
5 0
3 years ago
Read 2 more answers
I will mark as the brainliest answer<br><br>plz 8,9,10​
blagie [28]

Answer:

8.  acceleration = \dfrac{d(velocity)}{d(time)}  = 1 unit .

9. acceleration = \dfrac{d(velocity)}{d(time)}  = -1 unit.

10. acceleration = \dfrac{d(velocity)}{d(time)}  = 0 units.

Explanation:

8. i) acceleration = velocity / time

  ii) In this figure velocity = time

  iii) therefore acceleration = \dfrac{d(velocity)}{d(time)} = 1 unit .

9. i) acceleration = velocity / time

  ii) In this figure 4 = m + 5, therefore m = -1

     therefore velocity = (-0.5 \times time) + 5

  iii) therefore acceleration = \dfrac{d(velocity)}{d(time)}  = -1 units.

10.) velocity is constant at 2

     therefore acceleration = \dfrac{d(velocity)}{d(time)}  = 0 units

5 0
3 years ago
What is KBr (periodic table) def
adelina 88 [10]

Answer: Answered already

Explanation:

5 0
3 years ago
A book sitting on a shelf has gravitational potential energy. true or false
Darya [45]

Answer:

False

Explanation:

A book resting on a shelf has no potential energy relative to the shelf, since it has height of zero meters relative to the shelf.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Beaker contain 200 mL of water what is volume of water in cm cube and m cube
    8·2 answers
  • Calculate the force of gravity on the 0.60- kg mass if it were 1.3×107 m above Earth's surface (that is, if it were three Earth
    12·1 answer
  • 20. A photographer takes an average of 15 pictures per session. The total
    14·1 answer
  • A beam of light is a mixture of plane polarized and unpolarized light. When it is sent through a polaroid sheet, it is found tha
    14·1 answer
  • I've been stuck on this question for two weeks, please help... :,)
    14·2 answers
  • Two long, straight wires are fixed parallel to one another a distance do apart. The wires carry equal constant currents 1, in th
    14·1 answer
  • Types of telescope<br>for Space<br>observation​
    12·2 answers
  • I really need help can anyone help
    13·1 answer
  • How much support force does a table exert on a book that weighs 15 N when the book is placed on the table?
    12·1 answer
  • Help me <img src="https://tex.z-dn.net/?f=%5Chuge%5Cmathcal%5Cred%7B%7D" id="TexFormula1" title="\huge\mathcal\red{}" alt="\huge
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!