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"A certain object's mass is desired to be found after four weighings. If the obtained values are 2.744g, 2.756g, 2.751g, and 2.758g, find the uncertainty in the mass of the object."

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Answer: the uncertainty in the mass of the object is 0.007 g.

Step-by-step explanation:

The uncertainty in the mass of the object can be calculated using the formula for absolute uncertainty:

Absolute uncertainty = Maximum measured value - Minimum measured value / 2

In this case, the maximum measured value is 2.758 g and the minimum measured value is 2.744 g.

Plugging these values into the formula, we get:

Absolute uncertainty = (2.758 g - 2.744 g) / 2

= 0.014 g / 2

= 0.007 g

So, the uncertainty in the mass of the object is 0.007 g.
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