the average weight of 2 boxes is 119 kg. the weight of the heaiver box is 6 times the weight of the heaiver box?
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Answer:
A scale or balance is a device to measure weight or mass. These are also known as mass scales, weight scales, mass balances, weight balances.
Set of balance scales, with weights
Scales used to measure the weight of fruit in a supermarket
Digital kitchen scale, a strain gauge scale
Weighing scale for a baby includes a ruler for height measurement
The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. One plate holds an object of unknown mass (or weight), while known masses are added to the other plate until static equilibrium is achieved and the plates level off, which happens when the masses on the two plates are equal. The perfect scale rests at neutral. A spring scale will make use of a spring of known stiffness to determine mass (or weight). Suspending a certain mass will extend the spring by a certain amount depending on the spring's stiffness (or spring constant). The heavier the object, the more the spring stretches, as described in Hooke's law. Other types of scales making use of different physical principles