Complete Question
Air at 40C flows over a 2 m long flat plate with a free stream velocity of 7m/s. Assume the width of the plate (into the paper) is 0.5 m. If the plate is at a co temperature of 100C,find:
The total heat transfer rate from the plate to the air
Answer:

Explanation:
From the question we are told that:
Air Temperature 
Length 
Velocity 
Width 
Constant temperature 
Generally the equation for Total heat Transfer is mathematically given by

Where
h=Convective heat transfer coefficient

Therefore




Answer:
0.0659 A
Explanation:
Given that :
( saturation current )
at 25°c = 300 k ( room temperature )
n = 2 for silicon diode
Determine the saturation current at 100 degrees = 373 k
Diode equation at room temperature = I = Io 
next we have to determine the value of V at 373 k
q / kT = (1.6 * 10^-19) / (1.38 * 10^-23 * 373) = 31.08 V^-1
Given that I is constant
Io =
= 0.0659 A
Answer:
1) free of contaminants, 2) alkaline, and 3) micro-clustered
Explanation:
Hope it helps you
I think it’s D ?? I’m not completely sure tho