A physics teacher performing an outdoor demonstration

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A physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously shouts "Help". When she has fallen for 3.0 , she hears the echo of her shout from the valley floor below. The speed of sound is 340. How tall is the cliff? If air resistance is neglected, how fast will she be moving just before she hits the ground? (Her actual speed will be less than this, due to air resistance.)

Reference no: EM13606724

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