*PLEASE ANSWER*....
a sonar signal send down from a ship is reflected from the ocean floor and detected by hydrophone 0.6s later. calculate the depth of ocean. Take speed of sound in seawater as 5900m/s
Answers
Answer:
A ship sends a pulse of ultrasound and receives an echo 0·3 seconds later. If the speed of sound in water is 1500 m/s calculate its depth.
ship using SONAR to find its depth
speed = distance / time
... distance = speed × time
distance = 1500 × 0·3 = 450 m
BUT this is the total distance travelled by the sound - so the depth is half of this.
Depth = 450 / 2 = 225 m
Be careful - when dealing with reflected sound (echoes) exam questions often try to trick you into using the total distance, not the one you want.
Explanation:
Answer:
1.77 km
Explanation:
Time taken by the sonar signal to reach the ocean floor and come back = 0.6 seconds.
speed of sound in seawater = 5900 metre per second
time taken by the sooner signal to reach the surface of the ocean=0.6/2 =0.3 s
depth of ocean= 5900 ×0.3
=1,770m or 1.77 km