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1.What are the characteristics that keep solid and fluid different? • When the force is applied tangentially on solid then it experiences a finite deformation and shear stress that is proportional to the deformation. Whereas, when the same shear stress is applied on the surface of fluid then it experiences continuous increasing deformation where, the shear stress is proportional to the rate of change of deformation. • The fluid dynamic is dividend in three different areas. They are as follows: Hydrodynamics (flow of liquids), Gas dynamics (flow of gases) and Aerodynamics (flow of air). Whereas, the state of, solid doesn’t represent any of the stages. 2.What are the objectives of Aerodynamics? Aerodynamics deals with the theory of flow of air and it has many practical applications in engineering. There are some objectives that are being used in aerodynamics and these are as follows: • It is used to predict the forces, moments and heat transfer from the bodies that is moving through the ...

1. What are the data types included in Pascal? - Data type defines a range of values that a variable can store. It also includes set of operations that are performed on different data types. - There is predefined data type as: - Integers are the whole numbers that allow only the numbers to be written without any decimal points. - The real numbers are treated as floating point numbers that can have decimals as well with the non-decimal digits. - Boolean data types define only the two values either it is true or false. In programming it can be used when there is a decision need to be made between the two entities. - Char data type allows the single character to be written in an ordered form with the ordered character set. 2. What are sub-range types and sub-types in Pascal language? - The sub-range allows defining the implementation of the functions that provides the data conversions to be performed on the data types like real to integer, etc. - The sub-ranges of the data type can be mad...