1. A sound wave has a frequency of 2 kHz and wave length 35 cm. How long will it take to travel 1.5 km?
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Explanation:
1
Primary School Physics 5 points
. A sound waves has a frequency of 2kHz and wave length is 35cm. How long will it take to travel 1.5km?
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F= 2000hz
w.l. = .35m
speed = f × w.l.
700m/s
now dist. = 1500 m
time= d/sp.
1500/700
15/7s
2.142sec.
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Nikki57
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hmm... thanks bro.. & Nikki u 2. : )
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THE BRAINLIEST ANSWER!
Ankit1234
Ankit1234
Frequency,
v = 2 kHz
= 2000 Hz
Wavelength,
λ = 35 cm
= 0.35 m
Speed,
V = wavelength x Frequency
V = λ x v
= 0.35 m x 2000 Hz
= 700 m/s
Time taken by the wave to travel distance of 1.5 km is
t = d/v
= (1.5 x 1000 m) / 700 ms-^1
= 15/7 s = 2.1 s
Hence sound will take 2.1 s to travel a distance of 1.5 km.
Answer:
Explanation:
F= 2000hz
w.l. = .35m
speed = f × w.l.
700m/s
now dist. = 1500 m
time= d/sp.
1500/700
15/7s
2.142sec.