It’s not arrested because if you look closer it’s plug walk I don’t even understand how it talk tho
Answer:
The mass of the disk is 0.7179 kg.
Explanation:
Given that,
Radius = 0.453 m
Tangential force = 0.221 N
Angular acceleration = 0.111 rad/s²
We need to calculate the moment of inertia of both the disk and ring
Using formula of moment of inertia
For disk,
For ring,
The net moment of inertia
We need to calculate the torque
Using formula of torque
Put the value into the formula
Hence, The mass of the disk is 0.7179 kg.
Answer:
Most exceptions to the trend of decreasing radius moving to the right within a period occur in the d-block.
Explanation:
- In a period as we advance from left to right, the number of valence electrons in the same shell increases due to which the effective nuclear charge increases and thus the atomic size decreases.
- In d-block atomic radius initially decreases then remains constant and increases towards the end.
- As one moves from Sc (scandium) to Zn (zinc), the effective nuclear charge increases by a factor of 1, this is because:
- The number of electrons are low in the inner shell.
- The shielding power of d-orbital is low.
- Inter electronic repulsions will be operating at a value less than the nuclear charge, which will result in decrease in atomic radii.
- As the number of electrons in the inner orbital increases the outer electrons repel one another which enables them to push away.
- Although d-orbital has less shielding power, the number of electrons present in it are high. Hence, the electron-electron repulsive force becomes dominant, this results in an increase in the atomic radii.
Therefore, most exceptions to the trend of decreasing radius moving to the right within a period occur in the d-block.
Learn more about the periodic table here:
<u>brainly.com/question/9238898</u>
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Dicot plant
Monocot:
~3 or a multiple of three petals (3, 6, 9, etc.)
Dicot:
~4, 5 or multiples of 4 or 5 (5, 4, 8, 10, 12, 20, 15, etc.)
^^^^^ simple explanation of the petals