Answer:
Newton per square meter (N/m2)
Explanation:
Required
Unit of ultimate tensile strength
Ultimate tensile strength (U) is calculated using:

The units of force is N (Newton) and the unit of Area is m^2
So, we have:

or

<em>Hence: (c) is correct</em>
Answer:- 400 K - 26.665
600 K - 53.67
Explanation: y−y1=(y2−y1)/(x2−x1)×(x−x1)
Basic usage of the interpolation formula to get the values of the required answers kinematic viscosities at 400 and 600 K