Answer:
T surface = 3.9°C
Explanation:
given data
emissivity 0.6
absorptivity = 0.2
solar radiation is incident rate = 1200 W/m²
solution
we get here surface temperature by equality of emitted and absorbed heat rate that is
Q (absorbed) = Q (heat ) .................1
α Qinc = 
T surface = ![\sqrt[4]{\frac{\alpha Qinc}{\epsilon *\sigma * A} }](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7B%5Calpha%20Qinc%7D%7B%5Cepsilon%20%2A%5Csigma%20%2A%20A%7D%20%7D)
..........................2
put here value and we get
T surface = ![\sqrt[4]{\frac{0.2*1000}{0.6*5.67**10^{-8}} }](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7B0.2%2A1000%7D%7B0.6%2A5.67%2A%2A10%5E%7B-8%7D%7D%20%7D)
T surface = 276.9 K
T surface = 3.9°C
Engineers take periodic site measurements to verify the scale conveys true information
<h3>Site Measurements</h3>
measureants is the amount or extent of something ascertained through use of calibrated instrument called measuring instrument. When measurements are done on site it is called site measurements.
Engineers use the site measurements to scale their sketches hence to ensure the scale is always correct periodic measurements should be taken.
On-site measurements value and sketch measurement value gives the scale which is the ratio, should be maintained always
Read more on scale here: brainly.com/question/26467371
Answer:
A)cout<<setw(9)<<fixed<<setprecision(2)<<34.789;
B)cout<<setw(5)<<fixed<<setprecision(3)<<7.0;
C)cout<<fixed<<5.789E12;
D)cout<<left<<setw(7)<<67;
Explanation:
Stream Manipulators are functions specifically designed to be used in conjunction with the insertion (<<) and extraction (>>) operators on stream objects in C++ programming while the 'cout' statement is used to display the output of a C++to the standard output device.
setw: used to specify the minimum number of character positions on the output field
setprecision: Sets the decimal precision to be used to format floating-point values on output operations.
fixed: is used to set the floatfield format flag for the specified str stream.
left: adjust output to the left.
A) To display the number 34.789 in a field of eight spaces with two decimal places of precision. cout<<setw(9)<<fixed<<setprecision(2)<<34.789;
B) To display the number 7.0 in a field of six spaces with three decimal places of precision. cout<<setw(5)<<fixed<<setprecision(3)<<7.0;
C) To print out the number 5.789e+12 in fixed-point notation. cout<<fixed<<5.789E12;
(D) To display the number 67 left-justified in a field of six spaces. cout<<left<<setw(7)<<67;
Answer:
25.46 MJ
Explanation:
continuity : m3 - m1 = -m<em>e</em>
<em>Energy Equation: m3u3 - m1u1 = -meue + 1Q3</em>
<em />
<em>See the image attached (Well typed out format)</em>
