A research team sends a sonar signal to confirm the depth of the sea. The depth of the sea is 4.5 km and the speed of sound in water is 1500m/s. find time taken they heard an echo.
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Answered by
2
Speed = total distance / time taken
Time taken = total distance / speed
T= 4.5km/1500m/s
T=450/1500m/s
T=0.3 seconds
Time taken = total distance / speed
T= 4.5km/1500m/s
T=450/1500m/s
T=0.3 seconds
JOEL71:
Is there any other answer?
I guess no
0.3 Is correct?
I got 3 as answer
Ooh..wait let me check
Please
i done a mistake..its not 450 its 4500..so the answer will be three
Answered by
4
Hi there !!
Distance traveled = d = 4.5 km = 4500 metres
speed = v = 1500 m/s
Time = t
2d = v × t
2 × 4500 = 3500 × t
9000 = 3500× t
t = 9000 / 3500
t = 2.57 sec [ approx.]
Distance traveled = d = 4.5 km = 4500 metres
speed = v = 1500 m/s
Time = t
2d = v × t
2 × 4500 = 3500 × t
9000 = 3500× t
t = 9000 / 3500
t = 2.57 sec [ approx.]
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