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Q. The mass of a copper atom is 2.38 x 10-25 kg, and the density of copper is 8 920 kg/m3.
(a) Conclude the number of atoms in 1 cm3 of copper.
(b) Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Determine the volume of each cube.
(c) Find out the edge dimension of each cube that represents an estimate for the spacing between atoms.
A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..
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