Answer:
A) 
= 1.44 kg m², B) moment of inertia must increase
Explanation:
The moment of inertia is defined by
I = ∫ r² dm
For figures with symmetry it is tabulated, in the case of a cylinder the moment of inertia with respect to a vertical axis is
I = ½ m R²
A very useful theorem is the parallel axis theorem that states that the moment of inertia with respect to another axis parallel to the center of mass is
I = 
+ m D²
Let's apply these equations to our case
The moment of inertia is a scalar quantity, so we can add the moment of inertia of the body and both arms
=
+ 2 
= ½ M R²
The total mass is 64 kg, 1/8 corresponds to the arms and the rest to the body
M = 7/8 m total
M = 7/8 64
M = 56 kg
The mass of the arms is
m’= 1/8 m total
m’= 1/8 64
m’= 8 kg
As it has two arms the mass of each arm is half
m = ½ m ’
m = 4 kg
The arms are very thin, we will approximate them as a particle
= M D²
Let's write the equation
= ½ M R² + 2 (m D²)
Let's calculate
= ½ 56 0.20² + 2 4 0.20²
= 1.12 + 0.32
= 1.44 kg m²
b) if you separate the arms from the body, the distance D increases quadratically, so the moment of inertia must increase
The correct answer is A, 2x^3 - x^2 +3x +7
Solid elements are rigid elements. For example an element iron is in solid form. You can touch it and it’s hard.
The poet is expressing her belief that the second, more natural option is far more desirable than the first option.
- What is the summary of some keep the sabbath going to church?
Some hold the Sabbath going to Church is set faith and meditation.
The poem explores the idea of spiritual practices in Christianity.
It additionally illustrates the speaker's angle in the direction of those practices.
According to this, it's far obligatory to put on a surplice even as attending church services.
While she wears her casual get dressed and prays to God, Some hold the Sabbath going to Church –' is one in every of Emily Dickinson's best-recognized poems.
It functions her aim to are seeking for salvation without resorting to the traditional means.
hence,
The most likely reason for the poet to oppose the phrases "tolling the bell" and "sings" in these lines is the poet is expressing her belief that the second, more natural option is far more desirable than the first option.
Thus, option "A" is correct.
Learn more about "some keep the sabbath going to church" refer link :
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