Asked by ROWDY ANDRESS

A HIKER SHOUTS TOWARD A VERTICAL CLIFF 685 M AWAY. THE ECHO IS HEARD 4.00 SECONDS LATER.
WHAT IS THE SPEED OF SOUND OF THE HIKER'S VOICE IN AIR?
Answered by bobpursley
well,the sound traveled 2*685m

totaldistance= velocitysound*timetotal
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