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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.
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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?
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.
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.
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
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.
cross sectional study
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.