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Why cant dimensional analysis be used to determine if a given equation is correct?
Dimensional analysis simply ensures that two sides of an equation have the same dimensions. By "dimensions" I mean quantities like distance, pressure, force, time, electric charge, etc. For example, a distance can not equal a time. So, if the dimensions are wrong, the equation is wrong, but if the dimensions are right, the equation may be right or it may be wrong. Getting the dimensions right is only part of the task!
A dimensionally incorrect equation may be correct?
no it can't be
What is the equation of 7 to the negative 2 power as a positive?
7-2 IS positive. You do not need an equation for it. And if it were not positive, no correct equation would show it to be positive.
There are 216 inches in 18 ft?
The equation above is correct.
What is the error analysis?
It is when an operation is wrong and you have to find the mistake and correct and get the right answer
Why cant dimensional analysis be used to determine if a given equation is correct?
Dimensional analysis simply ensures that two sides of an equation have the same dimensions. By "dimensions" I mean quantities like distance, pressure, force, time, electric charge, etc. For example, a distance can not equal a time. So, if the dimensions are wrong, the equation is wrong, but if the dimensions are right, the equation may be right or it may be wrong. Getting the dimensions right is only part of the task!
How can you tell if an equation is dimensionally correct?
You do the calculations, not with actual numbers, but with dimensions. For example, [length] + [length] = [length], [length] x [length] = [length]2, square root of [time]4 = [time]2, etc. In the final result, left and right of the equation have to be equal. For more information, search about dimensional analysis (for example, the Wikipedia article on dimensional analysis might help).
What are the used of dimensional equation?
A dimensional check in an equation can provide a quick check about the possible correctness of the equation. For example, if you are supposed to calculate a speed, the dimensions of the result MUST be of the form [distance] / [time] (or something that you can simplify to distance/time). If it doesn't, the formula is wrong. If it does, it MIGHT be correct.
Is dimensionally correct equations necessarily be a physical relation?
No, not all dimensionally correct equations represent physical relationships. Dimensional analysis focuses on the units of measurements in an equation to ensure consistency but does not guarantee the physical relevance of the relationship itself. It is possible to have dimensionally correct equations that do not have a meaningful physical interpretation.
When doing dimensional analysis when do you round to the correct number of significant figures?
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
What is the politically correct word for physically disabled?
physically challenged
How do you spell dimensinel?
The correct spelling is "dimensional."
Which is the correct set of coefficient for the equation below?
The correct set of coefficient for an equation depends with the equation in question. There are many types of equations.
How do significant figures impact the accuracy of measurements in dimensional analysis?
Significant figures play a crucial role in dimensional analysis by indicating the precision of measurements. When performing calculations, it is important to consider the number of significant figures in each measurement to ensure the accuracy of the final result. Using the correct number of significant figures helps maintain the precision of the calculations and ensures that the final answer is reliable.
How do you spell phsically?
PHYSICALLY - related to materials, or the human body
How do you use one demensinal in a sentence?
The correct spelling is one dimensional. A drawing on a piece of paper is one dimensional.
What is mathematically complete?
if an equation is given the correct answer, it is mathematically correct.
