rohankishore/PhysiPy ? reverse-engineered prompt

Build me a Python library called PhysiPy that makes physics calculations really easy for students and researchers.

I want to be able to import simple modules for different areas of physics, like mechanics, electricity, gravitation, thermodynamics, and quantum stuff, then call functions with values and get the answer right away. It should also include a big set of useful physical constants, like the speed of light, Planck’s constant, gravity, Avogadro’s number, and other common ones, so I do not have to look them up every time.

Make it feel clean and simple to use, with short examples like calculating resistance or gravitational acceleration. It should be fast and reliable, and it can use NumPy where that helps. Please include the basic packaging setup so it can be installed with pip, plus a small demo or main file showing how the formulas work. If you need to check current docs or best practices online, go ahead and do that.