The speed of sound is 330 m/s in air while it is 440 m/s in liquid . The total time taken by sound to cover a distance of 6.6 km in liquid is
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Explanation:
sound is travelling in liquid
speed=440m/s
distance=6,600m
time=distance/speed
6,600/440
=15sec
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Given: speed of sound in air = 300m/s
speed of sound in liquid, s = 440 m/s
distance covered, d = 6.6km
To Find: total time taken by sound, t.
Solution:
To calculate, the formula used:
- distance = speed x time
- d = s x t
Applying the above formula:
6.6 = 440 x t
First, convert km into m:
1 km = 1000m
6.6km = 6.6 x 1000
= 660m
Put the value into the formula for t :
660 = 440 x t
t = 660/440
= 66 / 44
= 3/2
= 1.5
t = 1.5 s
Hence the total time taken by sound is 1.5 seconds.
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