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A simple accelerometer (an instrument fo...

A simple accelerometer (an instrument for measuring acceleration) can be made in the form of a tube filled with a liquid and bent as shown. During motion, the level of the liquid in the left arm will be at a height `h_(1)` and in the right arm at a height `h_(2)`. Determine the acceleration a of a carriage in which the accelerometer is installed, assuming that the diameter of the tube is much smaller than `h_(1)` and `h_(2)`.

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