A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 1.5 s after shouting. Estimate the length of the lake.© BrainMass Inc. brainmass.com March 21, 2019, 11:04 am ad1c9bdddf
The expert examines linear superposition and interference calculations. The length of the lake is estimated.