Solve the Problem. -Two Recording Devices Are Set 3,200 Feet Apart, with the Apart

question 103

Multiple Choice

Solve the problem.
-Two recording devices are set 3,200 feet apart, with the device at point A to the west of the device at pointB. At a point on a line between the devices, 300 feet from point B, a small amount of explosive isdetonated. The recording devices record the time the sound reaches each one. How far directly north ofsite B should a second explosion be done so that the measured time difference recorded by the devices isthe same as that for the first detonation?

• A)669.23 ft
• B)4,886.38 ft
• C)1,571.62 ft
• D)1,479.14 ft

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