Massdensity per speedquadrat. What else?simplemind said:TL;DR Summary: i try to understand what physical entity mass or massdensity divided by speedquadrat could be?
Any ideas?
thanks
i try to understand what physical entity mass or massdensity divided by speedquadrat could be?
Any ideas?
thanks
For a given projectile shape (fixed cross section and coefficient of drag), mass divided by the square of speed would be a good figure of merit for the decelleration of a bullet.simplemind said:i try to understand what physical entity mass or massdensity divided by speedquadrat could be?
and meters per seconds is meters per seconds. what else :-)kuruman said:Massdensity per speedquadrat. What else?
vanhees71 said:I've no clue, what such a quantity would be good for. Do you have a reference, where it is used?
Dimensional analysis is a mathematical method used in science to check the consistency of physical equations and to convert between different units of measurement. It is important because it allows scientists to identify and correct errors in their calculations and to ensure that their measurements are accurate and precise.
To perform dimensional analysis, you must first identify the physical quantities involved in the problem and their corresponding units of measurement. Then, using conversion factors and the rules of algebra, you can manipulate the units to cancel out and leave you with the desired unit for your answer. It is important to keep track of the units throughout the calculation to ensure accuracy.
Yes, dimensional analysis can be used in all fields of science, including physics, chemistry, biology, and engineering. It is a fundamental tool for solving problems and verifying the validity of equations and measurements.
One common mistake to avoid is using incorrect conversion factors or forgetting to convert between units. It is also important to pay attention to the direction of the conversion, as some units may need to be multiplied or divided depending on the problem. Additionally, it is crucial to keep track of the units and make sure they cancel out correctly in the final answer.
Dimensional analysis is closely related to the concept of units and dimensions. Units are the labels used to measure physical quantities, while dimensions refer to the physical nature of the quantity being measured. Dimensional analysis allows us to check the dimensions of equations and ensure that they are consistent, which is essential for accurate and meaningful calculations in science.