4.9 ounces
The metric unit that would be appropriate to measure the weight of a 2-ounce letter would be grams (g). One ounce is equivalent to approximately 28.35 grams, so a 2-ounce letter would weigh about 56.7 grams.
ounce
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I think what your reading is metric weight, so that would be grams. 28g=1 ounce by weight.
I would need more details to answer but if your asking about the common question, "What weighs more, an ounce of feathers, or an ounce of rocks?" then they are the same.
they both weigh an ounce so they weigh the same This is not the correct answer...DuFuss. Gold is weighed in troy weight, one troy ounce = 480 grains= 31.2 grams. Brick would be measured in avoirdupois weight, where 1 ounce=437.5 grains or 28.4 grams. Therefore, an ounce of gold weighs more than a ounce of brick, feathers, lead, etc.
Gallons are volume, not weight. A gallon is 128 fluid ounces. The word ounce can refer to an ounce of volume (like the fluid ounce mentioned above), or an ounce of weight. An ounce's weight of air will have a greater volume than one gallon.
You would typically measure the weight of a pencil in grams, as ounces are not commonly used for weighing small objects like pencils.
The sub-atomic weight of 1 ounce of cheese would be the combined weight of all the sub-atomic particles (protons, neutrons, and electrons) that make up the atoms in the cheese. This weight would be extremely small and not typically measured or relevant in everyday situations.
The weight of a basketball would vary on each planet depending on its gravity. The weight of a basketball on Mars would be about 0.38 times its weight on Earth, on the Moon it would be about 0.17 times its weight on Earth, and on Jupiter it would be about 2.36 times its weight on Earth.
If u weren't high when u wrote this you would realize u worded this improperly. Besides that an ounce is an ounce, 28 grams.
In general a fluid ounce of water will be an ounce of weight. A pint of water is 16 ounces which would be one pound.