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
xz_007 [3.2K]
3 years ago
8

Find the length (in m) of an organ pipe closed at one end that produces a fundamental frequency of 494 Hz when air temperature i

s 18.0°C.
Physics
1 answer:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer:

0.173 m.

Explanation:

The fundamental frequency of a closed pipe is given as

fc = v/4l .................. Equation 1

Where fc = fundamental frequency of a closed pipe, v = speed of sound  l = length of the pipe.

Making l the subject of the equation,

l = v/4fc ................ Equation 2

also

v = 331.5×0.6T ................. Equation 3

Where T = temperature in °C, T = 18.0 °c

Substitute into equation 3

v = 331.5+0.6(18)

v = 331.5+10.8

v = 342.3 m/s.

Also given: fc = 494 Hz,

Substitute into equation 2

l = 342.3/(4×494)

l = 342.3/1976

l =0.173 m.

Hence the length of the organ pipe = 0.173 m.

You might be interested in
Honeybees accumulate charge as they fly, and they transfer charge to the flowers they visit. Honeybees are able to sense electri
Vilka [71]

Answer:

ΔE> E_minimo

We see that the field difference between these two flowers is greater than the minimum field, so the bee knows if it has been recently visited, so the answer is if it can detect the difference

Explanation:

For this exercise let's use the electric field expression

         E = k q / r²

where k is the Coulomb constant that is equal to 9 109 N m² /C², q the charge and r the distance to the point of interest positive test charge, in this case the distance to the bee

let's calculate the field for each charge

 

Q = 24 pC = 24 10⁻¹² C

         E₁ = 9 10⁹ 24 10⁻¹² / 0.20²

         E₁ = 5.4 N / C

Q = 32 pC = 32 10⁻¹² C

         E₂ = 9 10⁹ 32 10⁻¹² / 0.2²

         E₂ = 7.2 N / C

let's find the difference between these two fields

         ΔE = E₂ -E₁

         ΔE = 7.2 - 5.4

         ΔE = 1.8 N / C

the minimum detection field is

         E_minimum = 0.77 N / C

        ΔE> E_minimo

We see that the field difference between these two flowers is greater than the minimum field, so the bee knows if it has been recently visited, so the answer is if it can detect the difference

8 0
3 years ago
The beginning of the Phanerozoic is marked by what occurrence
Sergio039 [100]
The beginning of the Phanerozoic is marked by the development of hard body parts, such as shells and bones.
3 0
3 years ago
_______ are pictures of relationships.
S_A_V [24]

Answer:

Graphs

Explanation:

5 0
3 years ago
Read 2 more answers
12. A diagram of the Earth revolving around the sun shows that less direct sunlight is reaching the Northern Hemisphere than the
Natali [406]
The northern hemisphere season is summer
5 0
2 years ago
Read 2 more answers
If the work required to move a 0.35 c charge from point a to point b is 125 j, what is the potential difference between the two
valentina_108 [34]
Using W = qV  =>  V = W/q


7 0
3 years ago
Other questions:
  • A person wants to determine the spring constant of an exercise stretch cord. He pulls the cord with a force probe that exerts a
    9·2 answers
  • PLEASE ANSWER ASAP!!! ITS DUE IN 10 MINUTES!!!!!!
    9·1 answer
  • Which of the following is an example of matter? -Leaves -Shadows -Light from the sun* -Sound
    10·1 answer
  • (a) When the displacement in SHM is one-sixth the amplitude xm, what fraction of the total energy is kinetic energy? (b) What fr
    11·1 answer
  • A motorcyclist drove 7 km at 57km/h and then another 7 km at 81 km/h. What was the average speed? ​
    5·1 answer
  • A boat crosses a river of width 229 m in which the current has a uniform speed of 0.756 m/s. The pilot maintains a bearing (i.e.
    7·1 answer
  • Help please
    14·2 answers
  • true or false. because the speed of an object can change from one instant to the next, dividing the distance covered by the time
    15·2 answers
  • The SI unit for energy is Newton true or false
    14·1 answer
  • What is the power through a device with a resistance of 100 ohms if a current of 8 A is running through it?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!