xzplicitskilz4183 xzplicitskilz4183
  • 30-01-2021
  • Physics
contestada

An iceberg is 3,000 metres from a submarine. The submarine emits ultrasound. How long until the submarine detects the iceberg?

Respuesta :

G4rrett380 G4rrett380
  • 30-01-2021
3.92s
Ultrasound works by the waves traveling to the object, bouncing off, then returning. So the distance traveled is twice that of the actual distance.
Therefore d=6,000m
d= speed x time
Speed of sound in water is about 1,530.
6000 = 1530 * t
t = 3.92s
Answer Link
alirodesc alirodesc
  • 05-02-2021

Answer:

Explanation:

t= d/s

t = 3000/330

t=9.09*2

t=18.18s

The submarine detects the iceberg in 18.18s

Answer Link

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