Gabaysyeshafhayeidn
Answered

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FINA
PROBLEM
GIVEN
FORMULAⓇ
SOLUTION
ANSWER
Example:
What is the speed of a sound
with a wavelength of 3m and a
frequency of 20 Hz?
v = ?
f = 20 Hz= 20/5
= 3m
v=hl
= 3 m (20 Hz)
= 3 m (2015)
v = 60mis
1. Determine the speed of sound
if the frequency of the sound is
18,000 Hz and the wavelength is
0.019 m
2. What is the frequency of a
sound with a speed of 349 m/s
and a wavelength of0.5 m?
3. The speed of sound is
calculated to be 339 m/s. If a
sound wave has a frequency of
500 Hz, find the length of the
sound wave
4. Find the speed of sound in air
when the temperature of the day
is 27°C
5. Calculate the speed of sound
wave in the air when the
temperature is 32°C.​

Sagot :

Cathy89idn

Answer:

1. v= 342 m/s

2. f = 698 Hz

3. λ = 0.7 m

4. v = 347.2 m/s

5. v = 350.2 m/s

Explanation:

#1 solution

v = f • λ

= (18,000)(0.019)

= 342 m/s

#2 solution

v = f • λ

349 = 0.5f

349 / 0.5 = f

f = 698 Hz (answer)

#3 solution

v = f • λ

339 = l (500)

length = 0.7 (answer)

#4 solution

Velocity of sound at 27°C

v = 331 m/s + (0.6 m/s/C)•T

v = 331 m/s + (0.6 m/s/C)(27 C)

= 347.2 m/s (answer)

#5 solution

velocity of sound at 32°C

v = 331 m/s + (0.6 m/s/C)•T

= 331 m/s + (0.6 m/s/C)(32 C)

= 350.2 m/s (answer)

sana makatulong po sayo..good luck!

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