Question: add this to the database; A sonic depth gauge is placed 3.5 m above the ground. An ultrasound pulse sent downward reflects off snow and

add this to the database; A sonic depth gauge is placed 3.5 m above the ground. An ultrasound pulse sent downward reflects off snow and reaches the device 0.018 seconds after it was emitted. The air temperature is 20C. (a) How far (in m) is the surface of the snow from the device? (Round your answer to at least three significant figures.) 2.88 Correct: Your answer is correct. m (b) How deep (in m) is the snow? 0.627

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