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ebigham5117
13.01.2021 •
Physics
How will the element Ca + O bond ?
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Ответ:
Ionic bonding
Explanation:
Since Ca is a metal and O is a nonmetal, they will experience ionic bonding. This means that Ca will "donate" two of its valence electrons to O. This will give both Ca and O a complete octet.
Ответ:
a) F = 680 N, b) W = 215 .4 J , c) F = 1278.4 N
Explanation:
a) Hooke's law is
F = k x
To find the displacement (x) let's use the elastic energy equation
k = 2
/ x²
k = 2 85.0 / 0.250²
k = 2720 N / m
We replace and look for elastic force
F = 2720 0.250
F = 680 N
b) The definition of work is
W = ΔEm
W =
- ![K_{eo}](/tpl/images/0440/1922/47596.png)
W = ½ k (
² - x₀²)
The final distance
We calculate the work
W = ½ 2720 (0.47² - 0.25²)
W = 215 .4 J
We calculate the strength
F = k![x_{f}](/tpl/images/0440/1922/7dd0c.png)
F = 2720 0.470
F = 1278.4 N