what is the difference between primary readers/ target audiences and secondary readers/ target audiences in professional communication.

Q / The National Dairy Company produces two types of milk (type A and type B), each type needs three operations to complete its production (sterilization and packaging) required to design an engineering problem and complete the formulation of the question and the problem so that it includes all the required information:
1- Determine the time of manufacturing the type A product for the three manufacturing processes (sterilization, packing and packaging) so that the manufacturing time for this product is not less than 4 and not more than 13 minutes.
2- Determine the time of manufacturing the Type B product for the three manufacturing processes (sterilization, packing and packaging) so that the manufacturing time for this product is not less than 3 and not more than 11 minutes.
3- Determine the single profit unit for product A and B, not less than 7 and not more than 14 dinars.
4- Determine the production times for the three operations, not less than 600 and not more than 2000 minutes.
5- Formulating a linear programming model that represents this production problem.
6- Finding the number of panels produced from both products in order to achieve the largest possible profit using the graph method.
7- Assume that the production engineer has set the time of production for the first process (sterilization) of Product B by 1 minute, what effect this decision has on the quantity of units produced for both types and its effect on profit, and illustrate this with numbers and drawing.
8- Compare the results obtained in paragraphs 6 and 7.
9- Writing a discussion of the results and recommendations for achieving the largest profit and increasing the quantities of products.

Please, please solve this problem, please

A 2.5 TR split unit is to be powered using solar photovoltaic (PV) cells. Assume the cooling unit has a COP = 3, the solar panel converts only the direct solar radiation (i.e. neglect diffuse part) & the conversion energy efficiency is 30%, calculate the required surface solar panel area (m2) and the saving in the monthly running cost (S.R./month) assume 8 hr’s unit daily operation & the power charge is 0.18 S.R/kW-hr. To calculate the solar radiation, use the following data: Location: Jeddah, l = 21.67o, L = 39.15o, CN = 0.7 Day: June 21st Solar hour (h) = 37.6o the solar panel is facing south with a surface tilting angle = 23o from the horizontal.

What kind of government policies in US are hurting building retrofitting for energy conservation?

Using MATLAB, plot the following curves for the crank angle range of 0-360:

a. For an engine that has R=3.5 and L=110 mm, plot the piston speed Sp at engine speeds of 500 RPM, 2000 RPM, and 5000 RPM on the same plot.

b. For an engine that has L=110mm and running at an engine speed of 5000 RPM, plot the piston speed Sp at R = 3, 4, and 5 on the same plot.

c. For each of the cases above, determine the crank angle at which the piston speed is maximum.

Q1 . Design the rectangular key . Determine the shaft strength factor if the length of the key should not exceed 12 cm .
used if need power 1kw velocity 500rpm ultimate stress 680Mpa yield stress 400Mpa shaft diameter50mm   tension=compression

********JAVA************

This program deals with graphs and path-finding within them.
write a program which allows the user to enter multiple levels of a text, consisting of a
'start', an 'exit', 'walls', and 'floors'. The letter S represents the start. E is the exit. O (the letter 'oh') represents a
'floor' (meaning a path you can follow). X is a wall (meaning a block you cannot pass).
The program will accept Standard Input (System.in), It is up to you whether you wish to use an adjacency matrix or adjacency lists (linked or array-based).
Ideally, the program will allow the user to find the 'fastest' path through the maze. In this context, 'fastest'
means the fewest number of steps possible to get from the start to the exit, without crossing a wall. Note: You
may only move North, South, East, West, Up, or Down (diagonal travel is not allowed).
If no valid path exists, the program should say so. You may assume 'sane' input, and that a start and exit are
present (though there might not be a path connecting them). The maps do not 'wrap' (i.e. you can't exit the left
edge to appear on the right edge), and you may not assume that a floor will have a boundary of walls.
Specifically, the input will be as follows:
An integer for the width of the map (W)
An integer for the height (length) of the map (H)
An integer for the depth (number of layers) of the map (D)
D×H lines of W characters (from {X,O,S,E}), terminated with newlines
For D layers, first the (H) lines of the top layer will be entered, then the lines of the second-highest, etc.
In place of any line of W characters, it is legal to include an entirely blank line (as such, any line will have W
characters followed by a \n, or consist solely of a \n. the code must be able to ignore such blank lines, but
may never rely on their presence; an input might not have any blank lines at all).

output should look like this:

Enter width: 8
Enter height: 5
Enter depth: 1
Enter maze below. Only rows of width 8 will be accepted.
XXXOOOOX
OXXXOXOE
OXXOOXXO
OSXOXXXO
XOOOXOOO
1. Solve suboptimally
2. Estimate optimal solution cost
3. Solve optimally
4. Enter new puzzle
5. Quit
:> 1
Not implemented. Use optimal instead.
1. Solve suboptimally
2. Estimate optimal solution cost
3. Solve optimally
4. Enter new puzzle
5. Quit
:> 3
Finding Solution...
Optimal Path Cost: 12
Optimal Path:
S E E N N E N N E E S E

6 mm diameter power line carries 40 A current and the resistance of one meter is 0.02 ohms. Find the surface temperature of the wire on a day when the wind temperature is 10 ° C, the wind speed is 40 km / h and it crosses the wire. Air characteristics: p = 1.246 kg / m3. k = 0.02439 W / m ° C. Pr = 0.7336, v = 1.426x10 m / s. (Electrical power, P = 1 * R).

Please refer to the article titled as “Improving Occupational Safety and Health in Construction”, published in The Ingenieur, Vol. 69 January – March 2017 by the Board of Engineers Malaysia. Please refer to Attachment 1 on the article titled as “Improving Occupational Safety and Health in Construction”, published in The Ingenieur, Vol. 69 January – March 2017 by the Board of Engineers Malaysia. As an engineer, identify how would it be ethical to ensure that the OSHA 1994 can be enforced ensuring a safer working environment? (400words)

In a spring controlled governor of the Hartung type, the lengths of the horizontal and vertical
arms of the bell crank levers are 100 mm and 80 mm respectively. The fulcrum of the bell crank
lever is at a distance of 120 mm from the axis of the governor. each revolving mass is 9 kg.
The stiffness of the spring is 25 kN/m. If the length of each spring is 120 mm when the radius of
rotation is 70 mm and the equilibrium speed is 360 r.p.m., find the free length of the spring. If
the radius of rotation increases to 120 mm, what will be the corresponding percentage increase
in speed ? [Hint. Free length of the spring = Length of the spring + compression of the spring]

A polytropic process (n= 1.25) compresses air from 0.3 m³ at 22 ⁰C and pressure of 125 kPa to   0.15 m³. It is then expanded at constant temperature to its original volume.

1. Sketch the P-V diagram                                                                                       [1 mark] Determine the;
2. Mass of air                                                                                                          [2 marks]     
3. Pressure at the end of the compression                                                           [2 marks]
4. Final Temperature                                                                                             [2 marks]
5. Net work                                                                                                            [4 marks]
6. Net heat transfer                                                                                               [4 marks]

(a) As an engineer who has just finished taking engineering materials
course, your first task is to investigate the causes of an automobile
accident. Your findings show that the right rear wheel has broken off
at the axle. The axle is bent. The fracture surface reveals a Chevron
pattern pointing toward the surface of the axle. Suggest a possible
cause for the fracture and why?

(b) A titanium pipe used to transport a corrosive material at 400°C is
found to fail after several months. How would you determine the
cause for the failure?

pls I need answers to these questions

The parking lot of a shopping center is square of sides a, delimited by sills of height h, and the entrance to the parking lot is width c. During the last rain it was flooded, and the only escape route was entrance c. To avoid future flooding, it is necessary to determine the time t in which the water takes to evacuate from the enclosure. For the effect, a 1: 100 scale model is used and it is observed that this time depends on all the distances from the parking lot, the gravity, the viscosity and the density of the rainwater. Determine the dimension numbers involved in the problem, ii) if it takes 8 minutes for the water to drain in the model, how long must the barrier be closed for vehicles to enter the parking lot again?