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WARRIOR [948]
2 years ago
8

What is the frequency of a sound source that produces the same wavelength in 20∘c air?.

SAT
1 answer:
Lubov Fominskaja [6]2 years ago
4 0

Based on the standard formula and data in the question, the frequency of a sound source that produces the same wavelength in 20∘c air is "<u>115.87Hz</u>."

<h3>What is the frequency of a sound source?</h3>

The <u>frequency of a sound source</u> is the quantity of waves that move through a point per unit of time.

Typically, a sound wave arises from a source vibrating at a frequency f, propagates at v, and has a wavelength λ.

Therefore, in this case, we have

Velocity (v) of sound in air = 343 m/s

Wavelength (λ) = 2.96 m

Frequency (f) =?

f = v ÷ λ

f = 3.43m/s ÷ 2.96m

=> 115.87Hz

Hence, in this case, it is concluded that the correct answer is 115.87Hz.

Learn more about Frequency of Sound Source here: brainly.com/question/1418576

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The variables x and y are directly proportional, and y=4 when x=3. What is the value of y when x=15 ?
lara [203]

Answer:

20

Explanation:

15 divided by 3 is 5 so y equals 4 times 5 equaling 20

hope this helps

7 0
2 years ago
A kayaker paddles along a river for 4 hours. In that time, she manages to move a total of 20 miles. What is the average speed of
mars1129 [50]
Speed = distance/time
20 miles divided by 4 hours = 5 mph

ANSWER : 5mph

8 0
3 years ago
If a person takes 30 ml of vinegar a day and the molarity of the vinegar is 0. 84 m then how many grams of acetic acid (hc2h3o2
babunello [35]

The mass of the acetic acid is 1.512 g.

<h3 /><h3>What is Molarity?</h3>

molarity is the concentration of a substance in mol per dm³

From the question,

The number of moles contained in the 30 mL vinegar is

  • n = (0.84×30)/1000
  • n = 0.0252 mol.

the molar mass of vinegar is calculated below.

  • m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
  • m.m = (1+24+3+32]
  • m.m = 60 g/mol.

To calculate the mass of acetic acid, we use the formula below.

  • R.m = n×m.m............. Equation 1

Where

  • R.m = mass of acetic acid.

Substitute these values into equation 1

  • R.m = (0.0252×60)
  • R.m = 1.512 g.

Hence, The mass of the acetic acid is 1.512 g.

Learn more about molarity here: brainly.com/question/20383725

8 0
3 years ago
What condition best describes the heat flow from one object to another.
lapo4ka [179]
Heat can be transferred in three ways: by conduction, by convention, and by radiation. Conduction is transferred of energy from one molecule to another by direct contact.
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2 years ago
The aspire test helps to measure ____ and career readiness.
4vir4ik [10]
Hello! Thanks for using Brainly! I hope my answer, answer's your question, and helps you. :)

The correct answer:

D) College 
3 0
3 years ago
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