The bones which has been observed to have sinuses in individuals include the following:
<h3>What is Sinus?</h3>
They are found in the neurocranium part of the body and comprise of system of hollow cavities which form part of the skull which serves as the protective structure of the brain and other organs such as the eyes, nose etc.
The sinus helps to insulate the brain as a result of the delicate nerves which run through it .It also provides the mechanical rigidity of the head which is a vital part of the body.
The bones which have sinuses are the frontal, ethmoid bones etc and are found in the skull region of individuals thereby making it the most appropriate choice.
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At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is
∑ F = 450 N - (0.75 kg) g = (0.75 kg) a
where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of
a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²
Then its maximum tangential speed v is such that
a = v² / (1.0 m)
⇒ v = √((1.0 m) a) ≈ 25 m/s
The common domain for the variables is; It is true on every set with no more than 22 members and false on other sets.
<h3>What is the domain of the variables?</h3>
We are given the statement;
∀x∀y((x ≠ y) → ∀z((z = x) ∨ (z = y)))
Since x and y are different objects in the domain, then we can say that anything in the domain is equal to x or to y.
Now, If the domain M has two elements, it means that the given sentence will obviously hold. Also, a one-element domain will work since there wouldn't be a pair x, y such that x ≠ y.
We can conclude that the common domain for the variables is; It is true on every set with no more than 22 members and false on other sets.
An example is that it is true on {a,b} and false on R
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