a physics problem help!!?

[marty]

the echo of a ship's foghorn, reflected from an iceberg, is heard 5.0 sec. after the horn is sounded. how far away id the ice berg??

how do i do something like this?

[michael r]

the speed of sound is 340.29 m/s...

it can be assumed that the sound is moving at the same rate, so it reaches the iceberg in 2.5 s. (it is reflected back so it takes twice as long to reach the ship again)

Therefore multiply 2.5s by 340.29 m/s and you have: 850.725m

The iceberg is 850.725 meters away

[Jacques W]

First where are you standing at the ice-burg or on the ship and then hear the echo if on the ship and hear the echo exactly 5sec after the horn was blown the iceburg is about 857.5 metres

[Poo P]

I would send someone in a small boat with a long tape measure to be sure the measurement is most accurate

[Jerry Lee]

The velocity of sound is about 1 mile per five seconds. For an echo, take the time and divide by 2. Take the one-way time and divide by 5 seconds per mile, get the approximate distance in miles.

[alex]

In dry air with a temperature of 21 °C (70 °F) the speed of sound is 344 m/s. (or 1130 ft/sec)

just do the math