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mylen [45]
3 years ago
12

If a wind is blowing from a siren toward your ear, does the frequency of the siren change? Why?

Physics
2 answers:
bonufazy [111]3 years ago
7 0
Answer:
The frequency of the wave stays the same.

Explanation:
As the wave is moving in an air medium throughout its whole journey and the time is constant, the frequency stays the same
Anna007 [38]3 years ago
5 0

Answer: NO

The frequency of the siren doesn't change because there is no motion of the siren toward your ear

Explanation:

frequency is the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second.

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unlike magnetic strips, which store only account information, a ________ stores funds on an integrated circuit chip.
nlexa [21]

unlike magnetic strips, which store only account information, an E-pusre or e-wallet stores funds on an integrated circuit chip.

  • A digital wallet is an app used to carry out financial transactions on mobile devices (or electronic wallet).our passwords and payment details are securely stored there. Instead of carrying our cards with us while shopping, these programs let us pay using our mobile. we input and save the details of our credit card, debit card, or bank account so that we may use our smartphone to make purchases later on.
  • The purpose of digital wallets is to increase access to financial goods and services by utilizing the capabilities of mobile devices. Due to its ability to safely and conveniently store all of a user's payment information, digital wallets effectively do away with the need to carry a traditional wallet.

To know more about e-wallet visit : brainly.com/question/15994600

#SPJ4

4 0
2 years ago
2 A kovács a meleg vasat a hideg vízbe teszi. A vas
Anton [14]

Answer:

300 kJ  

Explanation:

There are two energy flows in this process.

Heat lost by iron + heat gained by water =      0

            q₁             +                    q₂              =      0

       -300 kJ        +                     q₂              =      0  

                                                   q₂              = 300 kJ  

The water gained 300 kJ.

4 0
4 years ago
Using a rope that will snap if the tension in it exceeds 387 N, you need to lower a bundle of old roofing material weighing 449
Anni [7]

Answer:

(a) a\approx1.4 m.s^{-2}

(b) v\approx 4.133 m.s^{-1}

Explanation:

Given:

  • Limiting tension of snapping of the rope, T= 387 N
  • Weight of the object to be lifted, w=449 N
  • ∴mass, \Rightarrow m= 45.8163 kg
  • height of letting down the weight, h = 6.1 m

(a)

Now,

The force to be compensated for  being on the verge of snapping:

(T-w) = 62 N

Therefore, we need to produce and acceleration equivalent to the above force.

∵F=m.a

62=45.8163\times a

a= \frac{62}{45.8163}

a\approx 1.4 m.s^{-2}

(b)

From the equation of motion ,we have:

v^{2} =u^{2} +2a.s....................(2)

where:

u= initial velocity= 0 (here, starting from rest)

v= final velocity = ?

a= 1.4 m.s^{-2}

s= displacement =h =6.1 m

Now, putting the values in eq. (2)

v^2= 0^2 + 2\times 1.4\times 6.1

v\approx 4.133 m.s^{-1}        is the velocity with which the body will hit the ground in the given conditions.

7 0
4 years ago
For every action, there is an equal and opposite reaction” is a definition of _________ ​
sveticcg [70]

Answer:

These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.

7 0
3 years ago
Read 2 more answers
Two people are talking through a thick wall, 3 meters high, between them. This fact can best be explained by the phenomenon of A
dezoksy [38]
The answer is Ai just took it
6 0
3 years ago
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