The catapult, designed to throw a line to ships in distress, throws a 2-kg projectile. The mass of the catapult is 38 kg, and it rests on a smooth surface. If the velocity of the projectile relative to the earth as it leaves the tube is 44 m/s at 630° relative to the horizontal, what is the resulting speed of the catapult toward the left? Express your answer with the appropriate unit
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The resulting speed of the catapult mass is 38 kg, and it rests on a smooth surface. If the velocity of the projectile relative to the earth as it leaves the tube is 44 m/s at 630° relative to the horizontal toward the left is "2 m/s".
To solve this problem, we need to use conservation of momentum. The initial momentum of the system (catapult + projectile) is zero because it is at rest. After the projectile is launched, the momentum of the system must still be zero, but the momentum of the projectile and the catapult will be in opposite directions.First, we need to find the momentum of the projectile. We can use the equation:
p = mv
where p is momentum, m is mass, and v is velocity.
We know that the mass of the projectile is 2 kg, and the velocity relative to the earth is 44 m/s at θ = 30° relative to the horizontal. We need to find the velocity in the x-direction (horizontal) and the y-direction (vertical). We can use trigonometry to do this:
vx = v cos(θ) = 44 cos(30°) = 38.1 m/s
vy = v sin(θ) = 44 sin(30°) = 22 m/s
Now we can find the momentum of the projectile:
p = mv = (2 kg)(38.1 m/s) = 76.2 kg m/s
Next, we need to find the velocity of the catapult after the launch. Let's call this velocity Vc. We know that the mass of the catapult is 38 kg, and the initial velocity of the system was zero. So we can use the conservation of momentum equation:
p1 = p2
where p1 is the initial momentum (zero) and p2 is the final momentum (after the launch).We know that the momentum of the projectile is 76.2 kg m/s to the right, so the momentum of the catapult must be 76.2 kg m/s to the left:
p2 = -76.2 kg m/s
We can use the equation for momentum to find the velocity of the catapult:
p = mv
-76.2 kg m/s = (38 kg)Vc
Vc = -2 m/s
The negative sign means that the catapult is moving to the left, as expected.
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Related Questions
n the buck converter of problem 1, assume the current through the inductor to be ripple-free with a value of 1.5 a. draw the waveforms of the diode voltage va (at the current port) and the input source current iin (at the voltage port).
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The waveforms of the diode voltage (va) and input source current (iin) in the buck converter with a ripple-free inductor current of 1.5 A exhibit distinct characteristics related to the switching operation and current flow.
The waveforms of the diode voltage (va) and the input source current (iin) in the buck converter with ripple-free inductor current of 1.5 A are as follows: [Provide a concise description of the waveforms.]
In the given problem, we are considering a buck converter where the current through the inductor is assumed to be ripple-free with a constant value of 1.5 A. This means that the inductor current remains constant throughout the switching cycle.
The diode voltage (va) waveform represents the voltage across the diode connected in parallel with the load. It typically exhibits a rectified waveform, allowing current flow when the switch is off and blocking current when the switch is on.
The input source current (iin) waveform represents the current drawn from the input source, such as a DC power supply. In a buck converter, the input current has a pulsating nature, characterized by periods of high current during switch-on time and lower current during switch-off time.
To accurately draw the waveforms, detailed calculations and circuit analysis are required, taking into account the specific parameters and operating conditions of the buck converter circuit.
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A horizontal force P is applied to a 130 kN box resting on a 33 incline. The line of action of P passes through the center of gravity of the box. The box is 5m wide x 5m tall, and the coefficient of static friction between the box and the surface is u=0.15. Determine the smallest magnitude of the force P that will cause the box to slip or tip first. Specify what will happen first, slipping or tipping.
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Answer:
SECTION LEARNING OBJECTIVES
By the end of this section, you will be able to do the following:
Distinguish between static friction and kinetic friction
Solve problems involving inclined planes
Section Key Terms
kinetic friction static friction
Static Friction and Kinetic Friction
Recall from the previous chapter that friction is a force that opposes motion, and is around us all the time. Friction allows us to move, which you have discovered if you have ever tried to walk on ice.
There are different types of friction—kinetic and static. Kinetic friction acts on an object in motion, while static friction acts on an object or system at rest. The maximum static friction is usually greater than the kinetic friction between the objects.
Imagine, for example, trying to slide a heavy crate across a concrete floor. You may push harder and harder on the crate and not move it at all. This means that the static friction responds to what you do—it increases to be equal to and in the opposite direction of your push. But if you finally push hard enough, the crate seems to slip suddenly and starts to move. Once in motion, it is easier to keep it in motion than it was to get it started because the kinetic friction force is less than the static friction force. If you were to add mass to the crate, (for example, by placing a box on top of it) you would need to push even harder to get it started and also to keep it moving. If, on the other hand, you oiled the concrete you would find it easier to get the crate started and keep it going.
Figure 5.33 shows how friction occurs at the interface between two objects. Magnifying these surfaces shows that they are rough on the microscopic level. So when you push to get an object moving (in this case, a crate), you must raise the object until it can skip along with just the tips of the surface hitting, break off the points, or do both. The harder the surfaces are pushed together (such as if another box is placed on the crate), the more force is needed to move them.
Please help I need by today !!
What is the purpose of an engineering notebook ?
What is the purpose of a portfolio?
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There are two piston-cylinder systems that each contain 1 kg of an idea gas at a pressure of 300 kPa and temperature of 350 K. The two systems then undergo two different processes:
System 1 undergoes process 1 as follows:
Isobaric heating to 500 K, then compressed to a pressure of 500 kPa and a temperature of 600 K.
System 2 undergoes process 2 as follows:
Directly compressed in one step to a pressure 500 kPa and a temperature of 600 K
We "measure" the entropy of each system before and after the process. Which system had the biggest entropy change?
a. System 1
b. System 2
c. Entropy change is the same for both systems
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Answer:
Entropy change is same for both systems because entropy is a state function i.e., it doesn't depend on the path by which the system arrived at it's present state (500 kPa, 600 K) from initial state (300 kPa, 350 K) .
Explanation:
are there any companies that you can get a job at as an air craft engeer after university
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Explanation:
most big airports. my father has the same degree and works for southwest airlines
tech a says that rod bearings are held in place by the torque of the rod bolts crushing the bearing into the big end of the rod bore. tech b says that one of the connecting rod bearings act as a thrust bearing for the engine. who is correct?
Answers
There may be a thrust bearing on either side of the engine.
In a crankshaft, rod bearings are the bearings that allow the connection rod to rotate on the crankshaft. Tech A and Tech B both provided information regarding the same topic. Tech A says that rod bearings are held in place by the torque of the rod bolts crushing the bearing into the big end of the rod bore. Tech B says that one of the connecting rod bearings acts as a thrust bearing for the engine. Let's discuss each one in brief:Tech A is correct: The correct answer is Tech A, as Rod bearings are held in place by the torque of the rod bolts crushing the bearing into the big end of the rod bore. The big end of the connecting rod has a machined half-moon-shaped hole in it, which is where the bearing shells are mounted. As torque is applied to the rod bolts, the conrod is pulled tight against the crankshaft, crushing the bearing shells between the rod and the crankshaft.Tech B is not completely accurate: Though it is true that some connecting rod bearings serve as thrust bearings, it is not entirely accurate. The thrust bearing is generally located between the front of the engine block and the rear of the crankshaft, and its purpose is to resist forward and backward crankshaft movement due to combustion pressures.
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Water enters and leaves the 6-cm diameter pipe bend in Fig. P3.45 at an average velocity of 8.5 m/s. The horizontal force to support the bend against momentum change is 300 N. Find (a) the angle ϕ; and (b) the vertical force on the bend.
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Answer:
Water enters and leaves the 6-cm diameter pipe bend in Fig. P3.45 at an average velocity of 8.5 m/s. The horizontal force to support the bend against momentum change is 300 N. Find (a) the angle ϕ; and (b) the vertical force on the bend.
a) The angle \(\phi\) is 62.06°.
b) The vertical force on the bend is 180.47 N.
The weight of the water and the reaction force must be considered to determine the vertical force exerted on the bend. This analysis provides valuable insights into the behavior and structural requirements of the pipe bend in relation to the fluid flow, ensuring its proper functioning and structural integrity.
The objective is to determine two key parameters: the angle of deflection QQ of the pipe bend and the vertical force acting on it. By applying principles of fluid mechanics and equilibrium, the solution requires calculating the change in momentum of the water passing through the bend and equating it to the known horizontal force required to support the bend.
Given that,
The diameter (d)= 6 cm
The average velocity (v)=8.5 m/s
Consider the rate of change of momentum along the x-direction.
\(F_x=mass \times (\frac{Intial \ velocity-Final \ Velocity}{time})\)
\(F_x=m'[(V-(-Vcos\phi)]\)
\(F_x=\rho AV^2[1+cos\phi]\)
\(300=100\times(\frac{\pi}{4}(0.06)^2)\times(8.5)^2[(1+cos\phi)]\)
\([(1+cos\phi)]=1.4685\)
\(cos\phi=0.4685\)
\(\phi=cos^{-1}(0.4685)\)
\(\phi=62.06^{^\circ}\)
(b) Calculate the vertical force on the bend.
Consider the rate of change of momentum along the y-direction.
\(F_y=mass \times (\frac{Intial \ velocity-Final \ Velocity}{time})\)
\(F_y=m'[(0-(V-Vsin\phi)]\)
\(F_y=\rho AVsin\phi\)
\(F_y=(1000)\times(\frac{\pi}{4}(0.06)^2)\times(8.5)^2\times sin62.06^{\circ}\)
\(F_y=180.47 \ N\)
Therefore,
a) The angle \(\phi\) is 62.06°.
b) The vertical force on the bend is 180.47 N.
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Why is inches of water column" used to measure gas pressure instead of psig? A) gas pressures must be accurately set for correct operation B) All of these options C) gas marifold pressures are too smail for accurate measurenterit in pSi D) it is a more precise measurement
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The use of inches of water column as a unit of measurement for gas pressure is mainly due to the fact that gas pressures must be accurately set for correct operation.
Unlike psig (pounds per square inch gauge), which measures pressure relative to atmospheric pressure, inches of water column measures the pressure differential between two points, making it a more precise measurement for low-pressure systems.Furthermore, gas manifold pressures are often too small for accurate measurement in psig, which is typically used for higher-pressure systems. Inches of water column is a more suitable unit for measuring the small pressure differentials found in gas manifold systems.In summary, the use of inches of water column as a measurement for gas pressure is a more precise and suitable option for accurately setting gas pressures in low-pressure systems, where psig may not be a practical unit of measurement.The reason "inches of water column" is used to measure gas pressure instead of psig is because of the following factors:
A) Gas pressures must be accurately set for correct operation: Ensuring the correct pressure for gas systems is essential for safety and efficiency.
C) Gas manifold pressures are too small for accurate measurement in PSI: Inches of water column provides a more sensitive and precise measurement for low gas pressures typically found in these applications.
D) It is a more precise measurement: Using inches of water column allows for more accurate and consistent pressure readings, which is vital for proper functioning and safety in gas systems.
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A tank with it's insulation not fully in tact has a volume of 0.07 cubic meters. Initially the tank contains 0.02 kg of helium at 105 kPa. The tank is filled with helium from a supply line at 1000 kPa and 50 Celsius. The filling process ends when the pressure of helium in the tank reaches the supply line pressure, at which time the temperature of the helium in the tank is 430 K. Determine the following:
a. Initial temperature of the helium in the tank.
b. The amount of mass added to the tank.
c. The change in energy inside the tank.
d. The heat loss from the tank a.
Answers
Answer:
a. T1 = 176.810k or -96.19⁰c
B. 0.05832kg
C. 93.92kj
D. -3.934kj
Explanation:
These informations have been provided for tank
V1 = 0.07m³
M1 = 0.02kg
P1 = 105kpa
For pipe line:
P1 = 1000kpa
Tp = 50⁰c = 323k
P2 = 1000koa
T2 = 430k
If you check the table a-2(appendix)
Helium has
Cv = 3.1156kj/kgK
Cp = 5.1947kj/kgK
r = 1.667
R = 2.0785kj/kjk
A. Initial temperature
Using the ideal gas equation:
P1v1 = m1RT1
T1 is unknown
T1 = 105x0.07/2.0785x0.02
T1 = 176.810K
T1 = 176.810k
= -273+176.810
T1 = -96.19⁰C
B. Mass added to tank
M2 = mp+m1
Mp = m2-m1
Mp = (P1v1/RT2)-(p1v1/RT2)
= (1000*0.07)/(2.0785*430) - (105*0.07)/(2.0785*176.81)
Mp = (70/893.755)-(7.35/367.49958)
Mp = 0.07832-0.02
Mp = 0.05832kg
C. Change in internal energy:
U2-U1 = (m1+mp)cvT2-(m1CvT1)
∆U = (0.02+0.05832)(3.116)(430)-(0.02)(3.116)(176.81)
∆U = 93.92kj
D. Heat loss from tank
∆u = mphp + Q
hp = cpTP
93.92 = 0.05832(5.1947)(32.3)+ Q
Q = -3.934kj
A wedge and a screw are similar because they both _____.
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It increases force and modifies its direction at the same time, a moving inclined plane is a wedge, and a screw is a cylinder that has an inclined plane wrapped around it.
What are a wedge and a screw?A screw is a straightforward device connected to the inclined plane, much like a wedge.
Imagine an inclined plane wrapped around a cylinder to represent a screw, a cylinder that has an inclined plane.
The screw's threads are formed by this spirally inclining plane, an input force is applied to a screw when it is twisted into a piece of wood.
Therefore, a moving inclined plane is a wedge, and a screw is a cylinder that has an inclined plane wrapped around it.
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True or False. 1. The CPU understands instructions written in a binary machine language.
2. Comments in Python begin with the # character.
3. In Python, math expressions are always evaluated from left to right, no matter what the operators are.
4. Python allows you to compare strings, but it is not case sensitive.
5. Decision structures are also known as selection structures.
Answers
According to the question of CPU, the answer will be: true, true, false, false, true.
What is CPU?
CPU stands for Central Processing Unit and is known as the brain of a computer. It is responsible for executing instructions and carrying out processes that have been given by the user or a program. The CPU is made up of two main components: the Control Unit, which directs the operations of the computer, and the Arithmetic Logic Unit (ALU), which performs calculations and logical operations. The CPU is connected to the motherboard, which in turn is connected to the other components of a computer. The speed of the CPU determines the speed of the computer’s operations, and can be increased by overclocking the CPU.
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Let's say a VPN uses a certain layer of the OSI reference model to transmit an encrypted data payload that already contains a full second set of packets. What layer to use?
Answers
Answer:
this sounds interesting
Explanation:
Galvanized wire rope is approximately 10% higher in strength than bright wire rope. Select one: a. True b. False
Answers
The statement is false. Galvanized wire rope is not approximately 10% higher in strength than bright wire rope. The strength of wire rope depends on various factors such as the material composition, construction, and manufacturing process, rather than solely on whether it is galvanized or bright.
Galvanized wire rope refers to a type of wire rope that has been coated with a layer of zinc to enhance its corrosion resistance. This coating helps protect the wire rope from rust and can extend its lifespan in certain environments. However, the zinc coating does not significantly impact the tensile strength or breaking strength of the wire rope. The strength of wire rope is typically determined by factors such as the diameter of the wires, the number of strands, and the construction (e.g., 6x19, 7x19, etc.). Therefore, it is not accurate to state that galvanized wire rope is consistently 10% higher in strength than bright wire rope. The strength comparison between different wire ropes needs to consider their specific construction and specifications.
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pliers should never be used to holding work while?
Answers
Pliers should never be used to hold work while welding or soldering.
What is the explanation for the above response?The heat from these processes can transfer to the pliers and cause burns to the user's hands or damage to the pliers.
Also, pliers are not designed to withstand the pressure and force of welding or soldering, which can result in the pliers slipping and causing an accident. Pliers should be used only for their intended purposes, such as gripping, cutting, or bending materials, and the user should always use appropriate tools and equipment for each task.
Failure to do so can result in injury or damage to the materials being worked on.
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Electric current flow is the result of the movement of ____ (select all that apply)-electrons-cations-molecules-anions
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Electric current flow is the result of the movement of electrons.
The movement of electrons causes the flow of electric current. Electrons are negatively charged subatomic particles that orbit around the nucleus of an atom. When an electric potential difference is applied to a material, it creates an electric field that causes the electrons to move in a particular direction, creating an electric current. The movement of other particles such as cations, anions, or molecules cannot create an electric current because they do not carry an electrical charge. It is the movement of electrons that produces the flow of electricity that powers various devices and machines.
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Complete question is attached below
What is the basic requirement of measurements?
Answers
The basic requirement of measurements is to have a standard or reference point against which to compare the quantity being measured. This standard or reference point should be well-defined and stable, and the measurement process should be repeatable and consistent. Additionally, it is important to ensure that the measurement equipment is calibrated and in good working condition.
Answer:
The most basic requirement for measurements is the presence of a standard or reference point against which the quantity being measured can be compared. The measurement process should be repeatable and consistent, and the standard or reference point should be well-defined and stable. Furthermore, ensure that the measurement equipment is calibrated and in good working order.
Explanation:
1.3. If the surface tension coefficient of a fluid is 0,07 N/m and the radius
of the droplet is 2,5 mm. calculate:
1.3.1 surface tension force
(2)
1.3.2 difference in pressure of the droplet
(1)
Answers
Answer:
A) F = 0.011 N
B) ΔP = 5.6 N/m²
Explanation:
We are given;
surface tension coefficient; S = 0.07 N/m
Radius; r = 2.5 mm = 0.025 m
A) Formula to find the surface tension force(F) is given by;
F = SL
Where L is effective length = 2πr
F = 0.07 × 2π × 0.025
F = 0.011 N
B) Formula for difference in pressure droplet is;
ΔP = 2S/r
Thus;
ΔP = (2 × 0.07)/0.025
ΔP = 5.6 N/m²
ASAP PLease electrical engineering problem
Answers
Answer:
see attached
Explanation:
As you know, a full adder produces the binary value in (carry, output) that is the the number of true input bits among the (carry in, A, B) inputs.
The annotated diagram attached shows the bit values for a 4-bit full adder/subtractor.
__
Additional comment
If the numbers are considered "signed", then the top diagram will generate an "overflow" based on the difference between the carry C4 and the output O4.
what could happen if the engine was uncowled during the starting and operating procedures
Answers
If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity.
What is the engine starting procedure?Closing the throttle, turning off the fuel pump, setting the mixture control to idle cutoff, and simply cranking the engine is the most reliable hot start method I've found.
What is the procedure for engine failure?If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity. If you are unable to climb, close both throttles and land straight ahead.
What happens if engine fails during take off?The typical practice for the majority of aircraft would be to abandon takeoff if an engine failed during takeoff. In small aircraft, the pilot should turn the throttles down to idle, activate the speed brakes (if provided), and apply the brakes as needed if the engine fails before VR (Rotation Speed).
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A(n) ______ is a rod with a kink in it that is turned by pistons.
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HELP QUICK THIS IS TIMED!
Which option justifies using the resource described in the following scenario?
Tyler has designed a cell phone that is made completely of aluminum.
This resource is nonrenewable and must be recycled.
This resource is renewable and can be used forever.
This resource can be recycled to provide parts only once.
This resource contains parts that can be reused forever.
Answers
This resource can be recycled to provide parts only once.
Answer:
This resource is renewable and can be used forever.
Explanation:
A correctly designed and installed air curtain can be used to prevent what
Answers
To prevent pests from coming it!
A correctly designed and installed air curtain can be used to prevent insects, dust, and debris from entering a building
How to determine what it preventsAn air curtain, when correctly designed and installed, can prevent insects, dust, and debris from entering a building. It can also act as a thermal barrier, blocking the transfer of heat or cold, disperse odors, and contain smoke in the event of a fire.
A correctly designed and installed air curtain can be used to prevent or minimize several things.
It's important to note that the effectiveness of an air curtain depends on various factors, such as its design, installation, and maintenance. Proper sizing, airflow velocity, and positioning are crucial to achieving the desired results.
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The US navy recently funded the development of submersible drones to investigate shipwrecks located
on the ocean floor of the Marianas Trench. In this region of the world the ocean floor is located about
7.0 miles below sea level. Calculate the pressure a submersible drone would need to withstand 7 miles
below the surface of the ocean.
Answers
The pressure a submersible drone would need to withstand 7 miles is given to be 114.49 MPA
How to solve for the pressure of the submersible droneWer have P = rho x H
Where Rho s is the Sp x the weight of the sea water
= 10163 . 16n/m²
We are to proceed to find the value of H
H = 7. 0 miles below sea water
= 11265.408m
P = 11265.408m x 10163 . 16n/m²
= 114,492.144
= 114.49 MPA
Hence we can say that the pressure of the submersible drone should be equal to 114.49 MPA
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If the farmer has 162 feet of fencing, what is the largest area the farmer can enclose?.
Answers
If the farmer has 162 feet of fencing, the largest area the farmer can enclose is 12,096 square feet.
What is fencing?
Fencing is a grouping of three combat sports. Modern fencing has three disciplines: foil, épée, and sabre. Points are scored when the weapon makes contact with an opponent. A fourth discipline, singlestick, debuted in the 1904 Olympics but was dropped later and is no longer practised in modern fencing. Fencing was one of the earliest Olympic sports to be played. The modern sport evolved towards the end of the nineteenth century, based on ancient swordsmanship skills, with the Italian school having changed the historical European martial art of classical fencing, and the French school afterwards perfecting the Italian method.
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Find the resistance across terminals a-b (Rab) by reducing the circuit to a single resistor. Assume R = 8 Ω
Answers
Answer:
It seems there's no circuit diagram attached to the question. Please provide a circuit diagram or a more detailed question.
What is a reflected ceiling plan?
Answers
An architectural design that depicts visible objects that are positioned on a room or space's ceiling is known as a Reflected Ceiling Plan (or RCP). A RCP may consist of; heights of ceilings. Materials for ceilings, such as set plaster or ceiling tiles.
Why is it crucial to have a reflecting ceiling plan?A mirrored ceiling plan is a crucial component of any project. It is equally significant to other drawings. It also guarantees that every line in your floor plan is straight. Above all, it aids vendors by letting them know how and where specific fixtures will be set up.
A mirrored ceiling design is it mirrored?The Floor Plan is mirrored in the Reflected Ceiling Plan, or "RCP." The RCP looks up, whereas the Floor Plan is looking down.
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A piece of equipment with the capability to be programmed to perform quick and accurate operations multiple times
Answers
The equipment you're referring to is likely a programmable machine or controller. It can be programmed to perform tasks quickly and accurately multiple times. This improves efficiency and productivity in industries that use them.
Definition and Applications of Programmable MachinesThe piece of equipment you are referring to is likely a programmable machine or a programmable controller. This could be a computer, a microcontroller, or a specialized device such as a programmable logic controller (PLC) or a robotic arm.
These machines are designed to be programmed to perform specific tasks, and they can execute these tasks quickly and accurately, often much faster than a human could. They can also repeat these tasks multiple times with consistent precision, which is important for many industrial and manufacturing applications.
Programmable machines can be programmed using a variety of programming languages, depending on the specific machine and application. Some common languages used for programming these machines include ladder logic, structured text, and C/C++. The programming language used will depend on the specific application and the capabilities of the machine being programmed.
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The two major types of pro-rata (in-proportion) reinsurance areSelect one:A. Quota share and surplus share reinsurance.B. Proportional reinsurance and non-proportional reinsurance.C. Clash cover and catastrophe reinsurance.D. Per risk excess of loss reinsurance and catastrophe reinsurance.
Answers
The two major types of pro-rata (in-proportion) reinsurance are A. Quota share and surplus share reinsurance.
Pro-rata reinsurance involves sharing risks and premiums between the insurer and reinsurer based on a certain proportion. Quota share reinsurance involves the reinsurer taking on a fixed percentage of every policy written by the insurer, while surplus share reinsurance involves the reinsurer taking on a percentage of the insurer's total surplus.
These two types of pro-rata reinsurance differ from other types of reinsurance, such as non-proportional reinsurance, which covers risks only when they exceed a specific threshold.
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Air is compressed from 100 kPa, 300 K to 1200 kPa in a two-stage compressor with intercooling between the stages. The intercooler pressure is 400 kPa. The air is cooled back to 300 K in the intercooler before entering the second compressor stage. Each compressor stage is isentropic. For steady-state operation and negligible changes in kinetic and potential energy from inlet to exit, determine (a) the temperature at the exit of the seco
Answers
Answer:
410.7 K
Explanation:
Given data:
P1 ( initial air pressure ) = 100 kPa
Pi ( intercooler pressure ) = 400 kPa
P2( compressed air pressure ) = 1200 kPa
T1 = 300 k
Ti = 300 k
Calculate for the temperature at the exit of the second stage ( T2 )
we can calculate this using the relation below
T2 / Ti = ( P2/Pi )^(r-1/r)
∴ T2 = 300 ( 1200 / 400 )^( 1.4 - 1 / 1.4 )
= 300 ( 3 )^0.286
= 300 * 1.369 = 410.7 K
using the what-if function in excel to make a decision is considered a type of __________.
Answers
Using the 'what-if' function in MS Excel to make a decision is said to be a type of forecast and scenario model.
In MS Excel, the 'what-if' function allows altering the values in cells to check how those changes affect the results. When in Excel the 'what-if' function is used to check to see different results of decisions based on various values of the input, it is considered to be a type of forecast and scenario model.
The forecast and scenario model represents a strategic process for businesses used to plan several potential decision results. These scenarios are forecasted on the basis of visible risks and supposed uncertainties existing in a set of plausible situations. In simple terms, it can be stated that the forecast and scenario model assists to model multiple 'what-if' circumstances to be prepared for the future.
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