Answer:
A.) Carbon
Explanation:
Carbon is an element on the periodic table.
it has the symbol C, and is found in almost every single thing!
The pressure is 
.
Answer: Option A
<u>Explanation:</u>
Pressure defines the force acting per single area. So depending upon the amount of force acting over a given area in the perpendicular direction of the object, the pressure acting on that area will vary.
So the pressure is directly proportionate to the applied force on a particular region and inversely proportionate into the areas of the region. Hence, the unit of pressure is considered as 
or Pascal. Pressure can also be termed as the number of air molecules present in a specified closed region. Thus, for the present condition
Thus, by appling the given values in the above equation, we get,
=
So the pressure is .
<span>As it is uniform circular motion therefore speed is constant. Therefore we can rule out option B. Also in circular motion the direction of velocity vector changes therefore velocity can't be constant. Therefore option B is incorrect as well. Also centripetal acceleration is always towards the center so option D is wrong as well.
That implies
option A is correct.</span>
Answer:
3rd order polynomial
Explanation:
Given that the increase in the order of the polynomial the error between the curve fit and measured data will decreases hence :
The polynomial order that is best to use is the 3rd order polynomial, this is because using a 3rd order polynomial will produce a less variance and a low Bias
