Consider the velocity and temperature profiles for airflow in a tube with diameter of 8 cm can

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Consider the velocity and temperature profiles for airflow in a tube with diameter of 8 cm can be expressed as 

with units in m/s and K, respectively. If the convection heat transfer coefficient is 100 W/m2?K, determine the mass flow rate and surface heat flux using the given velocity and temperature profiles. Evaluate the air properties at 20°C and 1 atm.

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