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Earn +20 ptsQ: Why is echo heard after 0.1 seconds?
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When did Echo Point end?
Echo Point ended on 1995-12-01.
A sound wave traveling at three hundred twenty m per sec is emitted by the foghorn of a tugboat An echo is heard two point zero seven sec later How far away is the reflecting object Answer in units m?
The wave travels at 320m/s The echo is heard 2.07 seconds later In 2.7 seconds, the sound wave has traveled 350m/s*2.07s=724.5m Because the sound wave has traveled the distance from the tugboat to the reflecting object twice(once going out, once back), the final distance must be divided by 2 724.5m/2=362.25m The reflecting object is 362.25m away
A weight on the end of a spring bobs up and down one complete cycle every 2 seconds its period is?
We clearly heard you say "one complete cycle every 2 seconds". That means that the period is 2 seconds. No calculation or arithmetic of any kind is needed.
If Sound travels through air at 330 meters per second how long will it take a bat's cry to reach its prey and echo back if the prey is 1 meter away?
The total distance traveled by the sound wave is 2 m. At a rate of 330 m/s, it will take 0.00606 seconds for the bat to hear the echo.
What's special about 4th may 2006 in the UK and specifically two minutes and three seconds after one o'clock in the morning?
01:02:03;04.05.06
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