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
KengaRu [80]
3 years ago
13

A mandolin string's first harmonic is 392 Hz. How long is the string if the wave speed on it is 329 m/s?

Mathematics
1 answer:
Taya2010 [7]3 years ago
6 0
Velocity is given by:
velocity=wavelength×frequency
We note that the wavelength of a wave is twice the length of the string (2w) in the first harmonic.
velocity=329 m/s
wavelength=2w
frequency=392
substituting the values in our equation we get:
329=2w(392)
329=784w
solving for w we get
w=329/784
w= 0.41964~0.42 m
You might be interested in
Help with this??? please
Aleks [24]
Look at the picture.

Use the Pythagorean theorem.

(19+r)^2=r^2+35^2\\\\19^2+2\cdot19\cdot r+r^2=r^2+1225\ \ \ |-r^2\\\\361+38r=1225\ \ \ |-361\\\\38r=864\ \ \ |:38\\\\r\approx22.737

The diameter d = 2r.

Therefore

d=2\cdot22.737=45.474\approx45.5

Answer: 45.5

4 0
3 years ago
In which case would it be necessary to find the area of this circle
9966 [12]
You need to know the area if you're going to
  1st selection: cover the surface of the dartboard.
7 0
3 years ago
(y+3) solve by using the distributive property ​
MA_775_DIABLO [31]

Answer:

y-3

Step-by-step explanation:

4 0
3 years ago
A squirrel is 5.0 m away from you while moving at a constant velocity of 3m/s away from you. How far away is the squirrel after
Vladimir [108]
20 meters away.......
5 0
3 years ago
Can someone help, please?!
sergiy2304 [10]

Answer:

one solution

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • A triangle on a coordinate plane is translated according to the rule T-8,4(x, y). Which is another way to write this rule?
    6·1 answer
  • PLEASE ANSWER + BRAINLIEST!!!
    10·1 answer
  • In the equation z=x^2-3y, find the value of z when x=-3 and y=4
    7·1 answer
  • In order to solve this equation for x, the first step is to subtract 6 from both sides.
    11·2 answers
  • Which of the following expressions is equivalent to the expression 5 radical (n+4)^3?
    10·2 answers
  • What is a appropriate metric unit for the mass of a typical house cat
    10·1 answer
  • What is the mean/average of 1,2,3,4,5
    9·2 answers
  • Still need help with this!!! please help me ASAP
    14·1 answer
  • The figure shows three quadrilaterals on a coordinate grid:
    11·1 answer
  • Q. What is the equation of this line?<br> A: x=5 <br> B: y=5x<br> C: x=-5<br> D: y=5
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!