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Volume = cross sectional area * lengthArea = 2* cross sectional area + perimeter of cross section * length
If the diameter doubles (x2), the cross-sectional area quadruples (x4).
Other things being equal, more cross-sectional area will cause less resistance.
9 AWG
It depends on what you mean by a 30 pipe. Is 30 the cross sectional area - in which case, what is the length of the pipe? Is 30 the length - in which case, what is the cross-sectional area?
advantage of cross sectional study?
Yes, We can design a cross sectional study which its data collected in a retrospective format, so this study is called cross sectional retrospective study.
Cross-sectional design involves studying different groups of individuals at a single point in time, whereas cross-sequential design combines both cross-sectional and longitudinal elements by studying different age groups over a period of time. Cross-sectional design allows for quick and easy comparisons between different age groups, while cross-sequential design allows researchers to track the same individuals as they age.
The advantage of cross sectional studies is that they are simple, quick, and very affordable to conduct. As a disadvantage, the results of cross sectional studies may be difficult to assess where different participants are used at different levels of an investigation.
The advantage of cross sectional studies is that they are simple, quick, and very affordable to conduct. As a disadvantage, the results of cross sectional studies may be difficult to assess where different participants are used at different levels of an investigation.
Cross-sectional research design allows for data collection at a single point in time, providing a snapshot of a population's characteristics. It is relatively quick and cost-effective compared to longitudinal studies. It can identify correlations between variables and is useful for generating hypotheses for further investigation.
Cross sectional
A cross-sectional design does not control for cohort effects because it involves studying different age groups at the same point in time, making it difficult to separate age effects from cohort effects.
The collection of data and statistical analysis are time-consuming
The collection of data and statistical analysis are time-consuming
The advantage of cross sectional studies is that they are simple, quick, and very affordable to conduct. As a disadvantage, the results of cross sectional studies may be difficult to assess where different participants are used at different levels of an investigation.
You cannot create a cross sectional area of a rectangle. You can only create cross sectional areas for triangular shapes.