Answer:
1. They needed to develop multiple components in software programs.
2. The ability to overlap the development to be more evolutionary in nature.
3. The need to be more risk-averse or the unwillingness to take risks led to the use of a spiral model.
Explanation:
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
In SDLC, a waterfall model can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.
An incremental model refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.
Also, a spiral model can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.
<em>What motivated software engineers to move from the waterfall model to the incremental or spiral model is actually due to the following fact;</em>
- They needed to develop multiple components in software programs.
- The ability to overlap the development to be more evolutionary in nature.
- The need to be more risk-averse or the unwillingness to take risks led to the use of a spiral model.
Answer: I have 2 suggestions: one, maybe, maybe, use some of that metal tape that you get at hardware places, and: two, buy a new pipe (or pipes), two be sure that it won't happen again. Have a good day, and thanks for asking the brain!
Explanation:
Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
Answer:
The dept of the water needed is 26.11m
Explanation:
Given the following parameters:
Length of the pipe = 
Diameter of the pipe = 
Volumetric flow rate 
Knowing that:
Volumetric flowrate 
==> 
*Knowing that 
==> 
==> 
Hence, the dept of water needed to produce a volumetric flow rate of is 26.11m.
Answer:
acceleration = 24.23 ms⁻¹
Explanation:
Let's gather the data:
The acceleration of the car is given by a = 0.5 
The acceleration is the change in the speed in relation to time. In other words:
= a = a = 0.5 ...1
Solving the differential equation yields:
v = 0.5 + C₁
Initial conditions : 0 = 0.5 
+ C₁
C₁ = -5
at any time t, the velocity is: v= 0.5- 5
Solving for distance, s = 0. 5 - 0.5 t - 0.5
18 = 0.5 - 0.5 t - 0.5
t = 3.71 s
Substitute t = 3.71 s
v= 0.5- 5
= 19.85 m/s
a = 0.5 ...1
= 20.3531
an = 
= 
= 13.1382
Magnitude of acceleration = 
= 
= 24.23 ms⁻¹ Ans
