You are planning a mission to Mars. You want to send a 3-ton spacecraft there (3 tons wet mass, it is the initial mass of the spacecraft). As all the engineers working for you are calling in sick, you will have to design the mission yourself. (Mars radius is 3'390km).
A - What is the arrival excess velocity (in km/s), when reaching Mars' sphere of influence (following A, you were on a Hohmann transfer trajectory)?
B -The spacecraft is entering Mars' sphere of influence with the excess velocity computed above and a periapsis altitude of 400km was targeted. What type of trajectory is the spacecraft on?
C - How much delta v (km/s) will it cost to circularize the orbit? (give the magnitude of the delta v that is your answer in absolute value)
D - At the periapsis, how should the delta vi be oriented?
E - If you would have circularized the orbit when reaching Mars (before entering the SOI) and only after that entered the sphere of influence, on what kind of trajectory would the spacecraft be? (Even if this is an approximation, consider the SOI is located at infinity to answer this question.)

Answer:

(C) She would disagree but also point to some instances where they attempted to show some curiosity about her career.

A study topic or article titled "Mechanics and Modelling of Cold Rolling of Polymeric Films at Large Strains - A Rate-Independent Approach" focuses on understanding and modelling the behavior of polymeric films during the cold rolling process, particularly when subjected to enormous stresses.

The focus of this work is on the mechanical reaction of polymeric films during cold rolling, a deformation process that involves the decrease of thickness and elongation of the material at ambient temperatures.

The rate-independence property indicates that the behaviour of the polymeric films is unaffected by the rate of deformation.

Thus, the rate-independent method indicates that the material's reaction is not affected by the rate of deformation, which simplifies modelling and analysis.

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Your question seems incomplete, the probable complete question is:

What does it mean by : mechanics and modeling of cold rolling of polymeric films at large strains -- a rate-independent approach?

The two ways through which a computer model is likely to be used by an engineer in order to help refine a design are as follows:

Thus, the correct options for this question are A and D.

A Computer model may be defined as a type of computer program that significantly runs on a computer that typically develops a model, or simulation, of a real-world feature, phenomenon, or any other event.

According to the context of this question, an engineer would try to perform the ways in order to support the refining of the design through the help of calculating the possible costs of building a design and the run simulations to test a problem with the design.

Therefore, the correct options for this question are A and D.

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Answer:

The key to bieng a good engineer

1. Define Your Goals

2. Commit Yourself To Continuous Professional Development

3. Work On Improving Soft Skills

4. Understand Business

5. Embrace Change

6. Work Hard

7. Be Optimistic

8. Identify Role Models And Mentors

9. Stay Flexible

10. Focus On The Long-Term

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Answer: hello your question lacks the required diagram attached below is the diagram

answer :  29528.1  N/m^2

Explanation:

Given data :

dimensions of tank :

Length = 5-m

Width = 4-m

Depth = 2.5-m

acceleration of tank = 2m/s^2

Determine the maximum gage pressure in the tank

Pa ( pressure at point A )  = s*g*h1

    = 10^3 * 9.81 * 3.01

    = 29528.1  N/m^2

attached below is the remaining part of the solution

The reliability of the system is 1.5732986.

Given,The computer has three main modules that have individual reliabilities of 0.75, 0.93, and 0.83.It is given that, each module has a backup with a reliability equal to its own and a backup switch with a reliability of 1.00.Reliability of module 1 = 0.75Reliability of module 2 = 0.93Reliability of module 3 = 0.83Let, S be the reliability of the system.The system will work if: (original module 1 is working and its backup is not required) OR (original module 1 fails but its backup works) OR (original module 1 and its backup both fail but the backup switch is working and the backup of module 1 on another machine is working)Similarly, the system will work if: (original module 2 is working and its backup is not required) OR (original module 2 fails but its backup works) OR (original module 2 and its backup both fail but the backup switch is working and the backup of module 2 on another machine is working)Similarly, the system will work if: (original module 3 is working and its backup is not required) OR (original module 3 fails but its backup works) OR (original module 3 and its backup both fail but the backup switch is working and the backup of module 3 on another machine is working)Probability of original module i working = reliability of module i = RiProbability of original module i failing = 1 - RiProbability of the backup module of i failing = 1 - RiProbability of both original and backup of module i failing = (1 - Ri)^2Probability of the backup switch failing = 1 - 1.00 = 0.00Probability of the backup computer failing = 1 - reliability of backup computer = 1 - RiS = Probability of (original module 1 working and its backup is not required) OR (original module 1 fails but its backup works) OR (original module 1 and its backup both fail but the backup switch is working and the backup of module 1 on another machine is working) OR (original module 2 is working and its backup is not required) OR (original module 2 fails but its backup works) OR (original module 2 and its backup both fail but the backup switch is working and the backup of module 2 on another machine is working) OR (original module 3 is working and its backup is not required) OR (original module 3 fails but its backup works) OR (original module 3 and its backup both fail but the backup switch is working and the backup of module 3 on another machine is working)Probability of each module i being required = probability of original module i failing and its backup working + probability of both original and backup of module i failing but backup switch and backup of module i on another machine working= (1 - Ri) * Ri + (1 - Ri)^2 * Ri * (1 - 0.75) * (1 - 0.93) * (1 - 0.83) * (1 - 0.00) * (1 - R)S = Probability of module 1 being required + Probability of module 2 being required + Probability of module 3 being requiredS = [(1 - 0.75) * 0.75 + (1 - 0.75)^2 * 0.75 * (1 - 0.93) * (1 - 0.83) * (1 - 1.00) * (1 - 0.75)] + [(1 - 0.93) * 0.93 + (1 - 0.93)^2 * 0.93 * (1 - 0.75) * (1 - 0.83) * (1 - 1.00) * (1 - 0.93)] + [(1 - 0.83) * 0.83 + (1 - 0.83)^2 * 0.83 * (1 - 0.75) * (1 - 0.93) * (1 - 1.00) * (1 - 0.83)]S = 0.75 + 0.1374165 + 0.6858815 = 1.5732986

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The moment arm for the resultant hydrostatic force in metres upto 4 significant digits is 0.9491 M.

What is Hydrostatic force?

In the Cummins equation, the hydrostatic forces are the forces on a body caused by changes in hydrostatic pressure on the wetted surface of the body as it moves away from its equilibrium position.

As a result, the hydrostatic forces are proportional to the body displacements xj. Hydrostatic forces are simple linear functions of displacements for small amplitudes of motion, which can be defined by a stiffness coefficient matrix.

This is the standard method for modeling WECs; however, for large amplitudes of motion, and especially when the body surface at the water-plane is not vertical, a nonlinear representation of the hydrostatic forces is preferable.

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The key ideas explored in Ai Weiwei's Colored Vases are appropriation, transformation, and cultural heritage.

In his Colored Vases series, Ai Weiwei took Han Dynasty vases and dipped them in industrial paint, transforming them from ancient artifacts into contemporary works of art. Through this act of appropriation, Weiwei highlights the importance of cultural heritage and its evolution over time. By transforming these vases, Weiwei also comments on the commodification of art and the value placed on objects in contemporary society. Through the use of bright, industrial colors, Weiwei brings attention to the cultural differences between East and West and how they are perceived. Overall, the Colored Vases series is a thought-provoking exploration of culture, appropriation, and transformation in contemporary art.

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Answer:

A direct-current (DC) generator is a rotating machine that supplies an electrical output with unidirectional voltage and current.

Explanation:

Hope this helps

In the Arrhenius equation Co is a constant, R is the gas constant, T is the absolute temperature (K), and Q is the activation energy required to cause one mole of atoms or ions to move.

The Arrhenius equation is a mathematical equation that describes the dependence of the rate of a chemical reaction on temperature. This equation was developed by the Swedish chemist Svante Arrhenius in 1889 and is represented as follows:

\(k = A e^{-Q/RT}\)

Where k is the rate of the reaction, A is a constant of proportionality, Q is the activation energy, R is the universal gas constant and T is the absolute temperature. The activation energy is the energy necessary for a molecule to achieve the necessary requirements for a chemical reaction to occur.

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Answer:

a) √3/2 is the answer

b) √3 is the answer

Answer:

Cool I think u should do Marvel first

The given statement "A counter's input signal can come from an external device such as a sensor." is true becasue a counter's input signal can come from an external device such as a sensor.

A counter is a device used to count the number of events or objects that have occurred or passed by a specific point. The input signal to the counter can come from various sources, including sensors, switches, and other devices that can detect the occurrence of an event or the presence of an object.

For example, a conveyor belt in a factory can have a sensor that detects the presence of a product, and sends a signal to the counter to increment the count. In this case, the input signal to the counter comes from the sensor that is external to the counter itself.

Therefore, it is true that a counter's input signal can come from an external device such as a sensor.

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Answer:

Feed Forward

Explanation:

In FEED FORWARD compression design the signal is split at the input, and one signal is used to compress the other slightly delayed split signal.

I hope it helps! Have a great day!

The procedure has limited access to the variables numOunces and numsold. Although numOunces cannot be viewed or altered, numSold can.

As the name suggests, this sort of inheritance only applies to one class. Only one kid class develops from the parent class. At most, the attributes in the this type of inheritance can be traced down to one parent class.

Understanding Inheritance The term "inheritance" describes the possessions that a person leaves to their cherished ones when they pass away. Cash, investments like bonds or stocks as well as other things like jewelry, cars, works of art, antiques, or real estate can all be included in an inheritance.

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Answer:

The heat flow from the composite wall is 1283.263 watts.

Explanation:

The conductive heat flow through a material, measured in watts, is represented by the following expression:

\(\dot Q = \frac{\Delta T}{R_{T}}\)

Where:

\(R_{T}\) - Equivalent thermal resistance, measured in Celsius degrees per watt.

\(\Delta T\) - Temperature gradient, measured in Celsius degress.

First, the equivalent thermal resistance needs to be determined after considering the characteristics described below:

1) B and C are configurated in parallel and in series with A and D. (Section II)

2) A and D are configurated in series. (Sections I and III)

Section II

\(\frac{1}{R_{II}} = \frac{1}{R_{B}} + \frac{1}{R_{C}}\)

\(\frac{1}{R_{II}} = \frac{R_{B}+R_{C}}{R_{B}\cdot R_{C}}\)

\(R_{II} = \frac{R_{B}\cdot R_{C}}{R_{B}+R_{C}}\)

Section I

\(R_{I} = R_{A}\)

Section III

\(R_{III} = R_{D}\)

The equivalent thermal resistance is:

\(R_{T} = R_{I} + R_{II}+R_{III}\)

The thermal of each component is modelled by this:

\(R = \frac{L}{k\cdot A}\)

Where:

\(L\) - Thickness of the brick, measured in meters.

\(A\) - Cross-section area, measured in square meters.

\(k\) - Thermal conductivity, measured in watts per meter-Celsius degree.

If \(L_{A} = 0.03\,m\), \(L_{B} = 0.08\,m\), \(L_{C} = 0.08\,m\), \(L_{D} = 0.05\,m\), \(A_{A} = 0.01\,m^{2}\), \(A_{B} = 3\times 10^{-3}\,m^{2}\), \(A_{C} = 7\times 10^{-3}\,m^{2}\), \(A_{D} = 0.01\,m^{2}\), \(k_{A} = 150\,\frac{W}{m\cdot ^{\circ}C}\), \(k_{B} = 25\,\frac{W}{m\cdot ^{\circ}C}\), \(k_{C} = 60\,\frac{W}{m\cdot ^{\circ}C}\) and \(k_{D} = 60\,\frac{W}{m\cdot ^{\circ}C}\), then:

\(R_{A} = \frac{0.03\,m}{\left(150\,\frac{W}{m\cdot ^{\circ}C} \right)\cdot (0.01\,m^{2})}\)

\(R_{A} = \frac{1}{50}\,\frac{^{\circ}C}{W}\)

\(R_{B} = \frac{0.08\,m}{\left(25\,\frac{W}{m\cdot ^{\circ}C} \right)\cdot (3\times 10^{-3}\,m^{2})}\)

\(R_{B} = \frac{16}{15}\,\frac{^{\circ}C}{W}\)

\(R_{C} = \frac{0.08\,m}{\left(60\,\frac{W}{m\cdot ^{\circ}C} \right)\cdot (7\times 10^{-3}\,m^{2})}\)

\(R_{C} = \frac{4}{21}\,\frac{^{\circ}C}{W}\)

\(R_{D} = \frac{0.05\,m}{\left(60\,\frac{W}{m\cdot ^{\circ}C} \right)\cdot (0.01\,m^{2})}\)

\(R_{D} = \frac{1}{12}\,\frac{^{\circ}C}{W}\)

\(R_{I} = \frac{1}{50} \,\frac{^{\circ}C}{W}\)

\(R_{III} = \frac{1}{12}\,\frac{^{\circ}C}{W}\)

\(R_{II} = \frac{\left(\frac{16}{15}\,\frac{^{\circ}C}{W} \right)\cdot \left(\frac{4}{21}\,\frac{^{\circ}C}{W}\right)}{\frac{16}{15}\,\frac{^{\circ}C}{W} + \frac{4}{21}\,\frac{^{\circ}C}{W}}\)

\(R_{II} = \frac{16}{99}\,\frac{^{\circ}C}{W}\)

\(R_{T} = \frac{1}{50}\,\frac{^{\circ}C}{W} + \frac{16}{99}\,\frac{^{\circ}C}{W} + \frac{1}{12}\,\frac{^{\circ}C}{W}\)

\(R_{T} = \frac{2623}{9900}\,\frac{^{\circ}C}{W}\)

Now, if \(\Delta T = 400\,^{\circ}C - 60\,^{\circ}C = 340\,^{\circ}C\) and \(R_{T} = \frac{2623}{9900}\,\frac{^{\circ}C}{W}\), the heat flow is:

\(\dot Q = \frac{340\,^{\circ}C}{\frac{2623}{9900}\,\frac{^{\circ}C}{W} }\)

\(\dot Q = 1283.263\,W\)

The heat flow from the composite wall is 1283.263 watts.

An instrument that is not used to measure gas volume is the Orifice meter. The correct answer is option a.

The orifice meter is used to measure the rate of fluid flow in a pipe. It operates based on Bernoulli's equation principle. When a fluid flows through a pipe with a decrease in cross-sectional area, the velocity increases, and the pressure decreases. When the fluid reaches the orifice plate, there is a significant drop in pressure. This pressure drop is measured using a differential pressure transmitter. The orifice meter is widely used to measure fluid flow in pipelines due to its simplicity, accuracy, and cost-effectiveness. However, it is not used to measure gas volume because gases are compressible, and their densities can vary with pressure, temperature, and composition.

In contrast, the orifice meter is calibrated based on the fluid density, which can vary minimally for liquids. Therefore, other instruments such as gas chromatography, turbine meters, ultrasonic meters, and vortex meters are more suitable for measuring gas volumes.

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Answer:

a). 5 cylinders

b). 3 cylinders

Explanation:

To develop a gasoline engine that produces

Power, P = 300 hp

               = 300 x 746 = 223710 watt

at speed, N = 600 rpm = 100 rps

and stroke volume \($V_s=0.5$\) L

                                   = \($0.5 \times 10^{-3}\ m^3$\)

a). A naturally aspirated engine

BMEP at peak power = 10 bar

                                    = \($10 \times 10^5\ N/m^2$\)

Suction volume, V = \($V_s \times N$\)

                           = \($0.5 \times 10^{-3} \times 100 = 0.05\ m^3/s$\)

Power produced in one engine cylinder , p = BMEP x V

                                                                        = \($10 \times 10^5 \times 0.05$\)

                                                                        = 50000 watts

No. of cylinders required, n = \($\frac{P}{p}$\)

                                              = \($\frac{223710}{50000}$\)    

                                             = 4.47

So number of cylinders ≈ 5 nos.

b). A turbo charged engine

   BMEP = 20 bar = \($20 \times 10^5\ N/m^2$\)

   and Volume V = \($0.05\ m^3 /s$\)

Power produced in one engine cylinder, p = BMEP x V

                                                                       = \($20\times 10^5 \times 0.05$\)

                                                                       = 100000 watts

Therefore, number of cylinders, n = \($\frac{P}{p}$\)

                                                        = \($\frac{223710}{100000}$\)

                                                        = 2.23

So number of cylinders ≈ 3 nos.

The technical practice that incorporates build-time identification of security vulnerabilities in the code is C. application security.

Application security refers to security measures taken at the application level to guard against data theft or code piracy. It includes security considerations that take place during application development and design, as well as systems and methods to safeguard apps after they are put into use. Hardware, software, and procedures that detect or reduce security vulnerabilities may be included in application security.

Hardware application security is a feature of routers that block Internet users from viewing a computer's IP address. However, security measures at the application level are also frequently included in the software. An example of this is an application firewall, which firmly establishes what actions are permitted and not permitted. In conclusion, the correct option is C.

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Both technicians could be correct as either a shorted horn switch or a horn with high resistance could cause the horn fuse to blow.

When the horn switch is pressed, it completes an electrical circuit that sends power to the horn, causing it to sound. If there is a short circuit in the switch, it could allow too much current to flow, which would cause the fuse to blow. On the other hand, if the horn has high resistance, it could cause the same effect.

To diagnose the issue, the technicians can perform further testing. They can use a multimeter to measure the resistance of the horn to check for high resistance. If the resistance is too high, they can replace the horn.

They can also test the horn switch by disconnecting it from the circuit and testing for continuity across the switch contacts with a multimeter. If there is continuity, then the switch is shorted and needs to be replaced.

In summary, either a shorted horn switch or a horn with high resistance could be causing the horn fuse to blow. Further testing can be performed to determine the cause of the issue.

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Answer:

Well, it is very important to keep Urban areas organized and avoid building failures. It can even help avoid any bad adjustments that may call accidents so it is way much more better to plan it out carefully and make sure to include correct measurements and all

If the AC unit fan is not spinning, the first thing to check is the circuit breaker. Take a look at the circuit breaker associated with the AC unit and see if it's been tripped. A circuit breaker may trip from overheating due to outside temperatures and the motor's heat.

Answer:

See explanation below

Explanation:

Hypo-eutectoid steel has less than 0,8% of C in its composition.

It is composed by pearlite and α-ferrite, whereas Hyper-eutectoid steel has between 0.8% and 2% of C, composed by pearlite and cementite.

Ferrite has a higher tensile strength than cementite but cementite is harder.

Considering that hypoeutectoid steel contains ferrite at grain boundaries and pearlite inside grains whereas hypereutectoid steel contains a higher amount of cementite, the following properties are obtainable:

Hypo-eutectoid steel has higher yield strength than Hyper-eutectoid steel

Hypo-eutectoid steel is more ductile than Hyper-eutectoid steel

Hyper-eutectoid steel is harder than Hyper-eutectoid steel

Hypo-eutectoid steel has more tensile strength than Hyper-eutectoid steel.

When making a knife or axe blade, I would choose Hyper-eutectoid steel alloy because

1. It is harder

2. It has low cost

3. It is lighter

When making a die to press powders or stamp a softer metals, I will choose hypo-eutectoid steel alloy because

1. It is ductile

2. It has high tensile strength

3. It is durable

Answer:

(a)

Steels having carbon within 0.02% – 0.8% which consist of ferrite and pearlite are known as hypoeutectoid steel.

Steels having greater than 0.8% carbon but less than 2.0% are known as hypereutectoid steel.

(b)

The proeutectoid ferrite formed at a range of temperatures from austenite in the austenite+ferrite region above 726°C. The eutectoid ferrite formed during the eutectoid transformation as it cools below 726°C. It is a part of the pearlite microconstiutents . Note that both hypereutectoid and hypoeutectoid steels have proeutectoid phases, while in eutectoid steel, no proeutectoid phase is present.

Proeutectoid signifies is a phase that forms (on cooling) before the eutectoid austenite decomposes. It has a parallel with primary solids in that it is the first phase to crystallize out of the austenite phase. If the steel is hypoeutectoid it will produce proeutectoid ferrite and if it is hypereutectoid it will produce proeutectoid cementite.  The carbon concentration for both ferrites is 0.022 wt% C.

(c)

(i) Yield strength: The hypoeutectoid steel have good yield strength and hypereutectoid steels have little higher yield strengh.

(ii) Ductility: The hypoeutectoid steel is more ductile and the ductility has decreased by a factor of three for the eutectoid alloy. In hypereutectoid alloys the additional, brittle cementite on the pearlite grain boundaries further decreases the ductility of the alloy. The proeutectoid cementite restricts plastic deformation to the ferrite lamellae in the pearlite.

(iii) Hardness:  hypoeutectoid steels are softer and hypereutectoid steel contains low strength cementite at grain boundary region which makes it harder than hypoeutectoids.

(iv) Tensile strength: Grain boundary regions of hypereutectoid steel are high energy regions prone to cracking because of cementite in the grain boundaries, its tensile strength decreases drastically even though pearlite is present. Hypoeutectoid steel contains ferrite at grain boundaries and pearlite inside grains, so grain boundaries being the high energy state region, it has a higher tensile strength.

(d)

I would recommend hypereutectoid steel alloy to make a knife or ax blade

1- Hardness is required at the surface of the blades.

2- Ductility is not needed for such application.

3- Due to constant impact, the material will not easily yield to stress.

(e)

I would choose a hypoeutectoid steel alloy to make a steel that was easy to machine.

1- hypoeutectoid steel alloys have high machinability, hence better productivity

2- It will be used on softer metals, hence its fitness for the application

3- Certain amount of ductility is required which hypoeutectoid steel alloys possess.

Explanation:

See all together above

The thickness of the boundary layer will be 0.436m. Distance downstream of the leading edge where this Reynolds number occur will be 3.08mm. The shear stress on the plate on this point is 1.055 N/m².

Laminar or turbulent fluid flow is identified using the Reynolds number, abbreviated as Re. In all viscous flows, where a numerical model is chosen in accordance with pre-calculated Reynolds number, it is one of the primary regulating parameters.

Given, Reynolds number, Re = 500000

  length = 0.7 m

  width = 1.5m

   velocity, u = 1.5 m/s

the thickness of the boundary layer, Re = u×x/v

                                                            x = Re × v/u

                                                             x = 500000×1.31×10∧(-6)/1.5

                                                             x = 0.436m

distance downstream of the leading edge where this Reynolds number occur, δ = 5x/\(\sqrt{Re}\)

          δ = 5×0.436/√500000

          δ = 3.08 mm

The shear stress on the plate on this point,

τ = 0.332v(u/x)×√Re

τ = 0.332×1.31×10∧(-3) (1.5/0.436) √500000

τ = 1.055 N/m²

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The complete question is,

A thin plate 0.7 m long and 1.5 m wide is submerged and held stationary in a stream of water (T = 10°C) that has a velocity of 1.5 m/s. What is the thickness of the boundary layer on the plate for Re, 500,000 (assume the boundary layer is still laminar), and at what distance downstream of the leading edge does this Reynolds number occur? What is the shear stress on the plate on this point?

The strategic goals of an organization are the long-term objectives or targets that the organization aims to achieve.

The choice between a mechanistic or organic structure depends on the strategic goals and needs of the organization.

If the organization's strategic goals focus on stability, efficiency, and standardized processes, a mechanistic structure may be appropriate.

On the other hand, if the organization's strategic goals emphasize agility, innovation, and adaptability to a changing environment, an organic structure may be more suitable.

It's important to note that organizations can also adopt hybrid structures or adjust their structure over time to align with their evolving strategic goals and environmental conditions.

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Answer:

For shop spills larger than 12 gallons or 100 pounds, contact the National Response Centre. Option(A).

Explanation:

The National Response Centre (NRC) is a piece of the governmentally settled National Response System and staffed 24 hours per day by the U.S. Coast Guard.

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Answer:

A

Explanation:

y=3√3x44+C. To move the y terms to one side of the equation and the x terms to the other, treat dydx like a fraction: . dydx=x3y2.

So, by integrating IQ and then rearranging the formula to make y the subject, the universal solution to the differential equation may be derived. Integrating both sides gives us x3y = ex + c, where c is a constant. x3 dy dx + 3x2y = ex. Hence, y = ex + c x3 is the general .

The differential equation with the generic solution dydx=yx is ((d2y)/(dx2))2-((dy)/(dx))= is the degree of the differential equation. The differential equation's degree is 5+((dy)/(dx))2(5/3)=x5. The difference equation (dy)/(dx)+ycotx = cos. has a general solution.

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