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There is no silver in a 1990 US dime.
it tells us that the number is equal to the number of protons plus the number of nuetrons in the nucleus of an atom
Yes, 393 us divisible by 3 in addition to 1 and itself. It us a composite number.
Rail
To determine the total thickness of 5000 20-dollar notes, we first need to find the thickness of a single note. The thickness of a US dollar bill is approximately 0.0043 inches. Therefore, the thickness of a 20-dollar note would be the same. Multiplying the thickness of a single note by the total number of notes (0.0043 inches x 5000) gives us a total thickness of 21.5 inches.