Answer:
Explanation:
As we know that the moment of area of polar is also known as the second moment of area. It is used to describe resistance to torsional deformation, on cylindrical objects with an invariant cross section area.
Therefore, mathematically second moment of area can be written as,
Here, R is the radius of circular cross section.
Given that a circular section is welded to a wall has a diameter,
Therefore,
Therefore, second moment of area for the circular weld pattern is,
Answer: what are the awnser choices
Explanation:
Answer:
Ozone is a compound.
Explanation:
Elements are simple atoms that can merge or combine to produce a bigger molecule called a compound. They can not be splitted into smaller atoms. Examples are: hydrogen, carbon, etc.
A compound is formed as a result of the combination of two or more elements. They can be splitted into elements. Examples are: ammonium, water, carbon dioxide etc.
Ozone () is a less stable allotrope of oxygen which is made up of three atoms of oxygen. Therefore, it is a compound.