U.S. 1-cent coin (a penny) has a diameter of 19 mm and a thickness of 1.5 mm. Assume the coin is made of pure copper, whose density and approximate market price are 8.9 g/cm3 and $2.40 per pound, respectively. Calculate the value of the ...
(a) What is the radius of a(n) aluminium atom in Angstroms? The wire is 25.05 cm long and weighs 1.941 g. The density of copper is 8.933 g/cm^3. What is the diameter of the wire? What is the radius of the wire? Estimate the number of atoms in a spherical Si particle...
It allows the coating of flat surfaces and complex structures with a precise control of the thickness of the deposited film in the range of a few angstroms. Recently, we reported on the fabrication of sub-10 nm nanopores with long length (13 μ m) using both track-etched techniques...