Answer:
symbolic machine code.
Explanation:
The instructions in the language are closely linked to the machine's architecture.
Answer:
a) 358.8 KJ/kg
b) 0.0977 KJ/K- kg
c) 83.28%
Explanation:
N2 at 300 k. ( use the properties of N2 at 300 k (T1) )
Cp = 1.04 KJ/kg-k , Cv = 0.743 KJ/Kgk , R = 0.1297 KJ/kgk , y = 1.4 ,
Given data:
T2 = 645 k
P1 = 1 bar , P2 = 10.5 bar
<u>a)Determine the work input in KJ/Kg of N2 flowing </u>
Winput = h2 - h1 = Cp( T2 - T1 ) = 1.04 ( 645 - 300 ) = 358.8 KJ/kg
<u>b) Determine the rate of entropy in KJ/K- kg of N2 flowing </u>
Rate of entropy ( Δs ) = Cp*InT2/T1 - R*In P2/P1
= 1.04 * In (645/300) - 0.1297 * In ( 10.5 / 1 )
= 0.0977 KJ/K- kg
<u>c) Determine isentropic compressor efficiency </u>
Isentropic compressor efficiency = 83.28%
calculated using the relation below
( h'2 - h1 ) / ( h2 - h1 ) = ( T'2 - T1 ) / ( T2 - T1 )
where T'2 = 587.314
Answer:
M/A = 0.425 g/cm²
Explanation:
<u>Given the following data;</u>
Mass = 192 grams
Dimensions = 7 * 10 inches.
To find the mass per unit area;
First of all, we would determine the area of the lead sheet;
Area = 7 * 10
Area = 70 in²
<u><em>Conversion:</em></u>
1 square inch = 6.452 square centimeters
70 inches = 70 * 6.452 = 451.64 square centimeters
Next, we find the mass per unit area;
M/A = 192/451.64
<em>M/A = 0.425 g/cm²</em>
Answer:
A) The area of concrete is 141.546 in².
B) The stress in the steel bars is 4Kpsi.
C) The stress in the concrete is 566.4psi.
Explanation:
We can consider the concrete column with the 8 iron bars as a composite material with long fiber parallel to the load. The concrete act as the matrix of the composite. The iron bars act as reinforcement.
The total area of the column is:
The total area of the reinforcement is:
Therefore the total area of the matrix (the concrete) is:
If we consider this material as a long fiber composite, the matrix volume and fiber volume can be obtained as:
The stress in the material applied longitudinally to the fibers is:
But in this case , Therefore:
We can now calculate the strain of the composite:
With the strain we can calculate the stress of the iron bars and the concrete with young's equation: