What is the mass of an object that experiences a gravitational force of 164 N  near Earth's surface?      

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You need to use the Newton's second law of motion such that:

`F = m*a `

You need to substitute g for a such that:

`F = m*g => m = F/g`

Since the problem provides the value of the force and considering `g = 9.8 m/s^2`  yields:

`m = 164/9.8 => m = 16.73 Kg`

Hence, evaluating the mass of the object under the given conditions yields `m = 16.73 Kg` .

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