system of units, based on the International System of Quantities, their names and symbols, including a series of prefixes and their names and symbols, together with rules for their use (International Vocabulary of Metrology)
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What is the SI unit for mu in physics?
What is the SI system of units and why is it important in physics?
The SI system of units, or the International System of Units, is a standardized system used globally for scientific measurements. It includes base units like kilograms (kg) for mass, meters (m) for length, and seconds (s) for time. This system is crucial in physics because it ensures consistency and compatibility in measurements and calculations. For example, in the equation for force, , all units must be compatible (e.g., Newtons, kilograms, meters per second squared) to yield accurate results. Using a standardized system like SI helps avoid errors and facilitates clear communication among scientists worldwide.
How do you use mu in physics?
Usually, people write the quantities in italics, unlike the units.
$$\begin{align}\text{GPE}&= mgh\\60\text{ J}&= m \cdot(9.8 \text{ m}/\text{s}^2)\cdot(10\text{ m})\\&= m\cdot(98 \text{ m}^2/\text{s}^2)\\m&\approx 0.6\text{ kg}\end{align}$$
In LaTeX, type the quantities in math mode: $m$ yields $m$ (meaning mass). To type units inside the math mode, use, for example, $10\text{ m} or $10\,\mathrm{m}$, which yields $10\text{ m}$.
The authoritative reference for the SI is the official BIPM brochure on the SI:
https://www.bipm.org/documents/20126/41483022/SI-Brochure-9.pdf/fcf090b2-04e6-88cc-1149-c3e029ad8232?version=1.16&t=1632138652324&download=true
On p 147 it states “Unit symbols are printed in upright type regardless of the type used in the surrounding text”. So using any other typeface for variables will allow them to be distinguished.
On p 148 it says specifically “Symbols for quantities are generally single letters set in an italic font”, which is the standard practice and should generally be followed. This helps readers to understand at a glance which quantities mean what. Readers will instantly recognize that $5 \ m$ is five times some variable $m$ and that $5\mathrm{\ m}$ is 5 meters. Any other typeface conventions should be made explicit.
Finally, p 149 says “The numerical value always precedes the unit and a space is always used to separate the unit from the number”. That can also be helpful by grouping any units together with a space after the quantity to add visual separation.
Here is a direct link to the lab instructions: https://dcc.ilc.org/sph3u/locker/sph3u_02_a_force_mass_and_accelera.pdf
I have completed Part 1 of the lab and am currently working on Part 2 of the lab. I have already filled in the entire chart for what it is asking me in Part 2 except for the column labeled as 1/m wagon (1 kg). The lab gives no explanation of what 1/m is in context of the problem and is asking me to talk about 1/m relationship with acceleration but I have no idea what 1/m means, and the units of 1/m being 1 kg makes me even more confused. Does anybody understand what 1/m is? Inverse of mass?
Here is screenshots of what I have done so far for part 1 and part 2, not looking for anyone to do the whole thing for me, I just want to understand what the lab is asking of me that's all. Thanks for the help, didn't know this place existed, glad it does.
https://imgur.com/a/rq0FBDf