A block weighing 10 newtons is resting on a plane inclined 30° to the horizontal. What is the magnitude of the normal force acti
1 answer:
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Answer:
0.5 g
Explanation:
The half-life of a radioactive isotope is the time it takes for a certain amount of that isotope to halve.
In this case, we have an isotope of Americium-241, which has a half-life of
This means that after 1 half-life (432 years), there will be an amount of americium equal to half its initial amount.
In this problem, the initial amount of americium is
Therefore, after 432 years (1 half-life), the amount of americium left will be half:
Answer:
Miller Indices are [2, 4, 3]
Solution:
As per the question:
Lattice Constant, C =
Intercepts along the three axes:
Now,
Miller Indices gives the vector representation of the atomic plane orientation in the lattice and are found by taking the reciprocal of the intercepts.
Now, for the Miller Indices along the three axes:
a =
b =
c =
To find the Miller indices, we divide a, b and c by reciprocal of lattice constant 'C' respectively:
a' =
b' =
c' =