In a water tank experiment, water waves are generated by a vibrating source with their crests 2.2 cm apart. A second source, vibrating the same way and in phase, is added 6.0 cm away from the first source.

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Question

In a water tank experiment, water waves are generated by a vibrating source with their crests 2.2 cm apart. A second source, vibrating the same way and in phase, is added 6.0 cm away from the first source. If the end of the tank is 2.0 m from the sources, where would you stand, relative to the "straight-through" direction (on the line perpendicular to the end of the tank and midway between the two sources), so that you received little or no wave action?

a. closest position to the "straight through" line (in meters).

b. next closest position from the "straight through" line (in meters).

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