Preview 2-17.
In an isosceles triangle, the two angles opposite the congruent sides are called the base
angles. You may have learned in a previous course that the base angles of an isosceles
triangle are always congruent. Now you will prove it! In the diagram at right, A SYM is an
isosceles triangle, and point E is the midpoint of SM . Homework Help
E
M M
Make a flowchart to prove that the base angles of A SYM are congruent, that is, prove that ZS – ZM.

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2-17.
In an isosceles triangle, the two angles opposite the congruent sides are called th

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Ответ:

jacobbrandon2002

05.02.2023

Mathematics

$1.16*10^{23} vacancies/m^3$

Explanation:

Data given

temperature =700c

Density=10.35g/cm^3

but

$\frac{N_v}{N}=2*10^{-6}\\N_v=2*10^{-6}N\\$

Nv is the number of vacant site and N is the number of lattice site.

Since the number of lattice site can also b computed as

$N=\frac{p_{Ag} * N_A}{A_{AG}} \\N=\frac{6.022*10^{23} * 10.35*10^6g/m}{107.87g/mol} \\N=5.78*10^{28}atom/m^3$

if we substitute the value of the number of lattice into the first equation, we arrive at

$N_v=2*10^{-6} *5.78*10^28\\N_v=1.16*10^{23} vacancies/m^3$

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