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
FinnZ [79.3K]
2 years ago
12

Suppose that the linear density of the A string on a violin is 8.20 10-4 kg/m. A wave on the string has a frequency of 410 Hz an

d a wavelength of 71 cm. What is the tension in the string?
Physics
1 answer:
alukav5142 [94]2 years ago
4 0

Answer:

T = 69.49 N

Explanation:

The relation between the tension and speed of a wave is:

v=\sqrt{\frac{T}{\mu}} (1)

Where:

  • T is the tension of the string
  • μ is the linear density (8.20*10⁻⁴ kg/m)
  • v is the speed of the wave

Let's recall, that the speed of a wave is the wavelength times the frequency, so:

v=\lambda *f=0.71*410=291.1 m/s

Now, we just need to solve the equation (1) for T and use the value of v we found before.

T=\mu v^{2}=8.20*10^{-4}*(291.1)^{2}=69.49 N

Therefore the tension of string is 69.49 N.

I hope it helps you!

You might be interested in
Linus builds an electrical circuit with a battery and with wires that carry the current. As the battery weakens, the current als
pantera1 [17]

Answer:

The field gets weaker

Explanation:

I’m taking the test right now, hope this helps!!

7 0
3 years ago
Read 2 more answers
How do galaxies vary?
givi [52]

The universe has trillions of galaxies and counting. Astronomers give names to each galaxy base on its shape (e.i, Sombrero galaxy, Milkyway Galazy, ect,.).

Also, the size of the galaxy is taken into account and their color.


4 0
2 years ago
Objects change motion due to forces. When they become unbalanced, their motion changes, while balanced forces cause constant mot
Neko [114]

Answer:

Balanced forces: When a number of forces acting on a body do not cause any change in its state of rest or of uniform motion along a straight line then the forces are said to be balanced forces. In other words, a body is said to be underbalanced forced when the resulting force acting on the body is zero.

The balanced forces:

⋅ Cannot set any stationary body into motion.

⋅ May change the shape and size of soft objects.

⋅ Cannot change the speed/velocity of a moving body.

Unbalanced forces:

When the resultant of all the forces acting on a body is not zero, then forces are called unbalanced forces.

Example:

⋅ Game of tug of war: When the forces exerted by both the teams are equal, then the rope does not move. But, if the force applied by team A is greater than team B, then the rope, as well as members of the weaker team, i.e., B, will be pulled towards A. The unbalanced force can (a) Set a stationary body in motion.

⋅ Set a moving body at rest.

⋅ Change the direction of motion.

Explanation:

give me an one thanks please

5 0
2 years ago
What does genetic information dictate,or control?
Nookie1986 [14]
Genetic information, such as DNA, will dictate or control the characteristics that an organism will have.
3 0
3 years ago
An electron starts from rest in a vacuum, in a region of strong electric field. The electron moves through a potential differenc
Semenov [28]

Answer:

The kinetic energy is  KE  = 5.67*10^{-18} \ J

Explanation:

From the question we are told that

    The potential difference is  \Delta V  =  36 \ volts

       

The potential energy of the end  is mathematically represented as

        PEs  =  - q *  \Delta V

q  is the charge on an electron with a constant value of q =  1.60 *10^{-19} \  C

       substituting values

      PE  =  - 1.60*10^{-19} *  36

      PE  =  -  5.67*10^{- 18} \ J

Now from the law of energy conservation

     The PE_e    =  KEe

Where  KE _e is the potential  energy at the end

 So  

        KE  = 5.67*10^{-18} \ J

The  negative sign is not includes because kinetic energy can not be negative

7 0
3 years ago
Other questions:
  • How does refraction cause an object to appear bent?
    6·2 answers
  • In your own words explain efficiency
    14·2 answers
  • After watching a video about submarines, Jamil wants to learn more about the ocean. which question could be answered through sci
    9·1 answer
  • A balloon is expanded to the same volume as that of a human head. Do an order-of-magnitude estimate of the volume of this balloo
    11·1 answer
  • Plz help plz give u brainlist<br>state principal of pin hole camera??<br>​
    13·1 answer
  • A pickup truck and a hatchback car start at the same position. If the truck is moving at a constant 33.9m/s and the hatchback ca
    15·1 answer
  • 7. Jennifer purchased a video game console plus an
    13·2 answers
  • Determine the poles of the magnet. Look at the three compass readings that are on top of the magnet. Label the
    6·2 answers
  • Temperature is the average amount of energy of motion in each particle of a substance. It is a measure of how loud or quiet a su
    7·1 answer
  • Hello please help i’ll give brainliest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!