2018年4月5日 · Physicists use the word "potential" in different ways in different contexts, so there is no completely rigorous and general definition. There is a unifying idea, but unfortunately it's abstract …

2014年2月16日 · The definition of Ohm in SI basic units is: 1Ω = 1kg ⋅m2 s3 ⋅A2 1 Ω = 1 kg m 2 s 3 A 2 It's really hard for me to get that this definition is correct. It's clear that mathematical calculations …

37 SI system uses all (that I know) measurement basic units as 1 (single) instance: meter, second, Ampère, etc, except for the KILOgram. It already defined with 1000 multiplier (kilo). It prevents from …

What physics topics do I need to know to start learning about quantum mechanics? (In addition to the mathematical topics mentioned at What is the math knowledge necessary for starting Quantum …

For a basic short introduction to quantum mechanics, you can't beat: Feynman Lectures on Physics Vol III This is very good and intuitive, and complementary to the remaining books. Landau and Lifschitz …

2020年12月3日 · How can this magical stat-mech "electrochemical potential" overcome the basic rules of electrostatics and cause charged ions to move against the electrostatic field, resulting in an …

It starts with basic concepts of differential geometry and then explains general relativity using the geometric viewpoint. It also includes several advanced topics like spinors, quantum fields in curved …

2015年10月27日 · Yes, most basic mechanics problems ignore drag effects (because those are hard, amongst other things). But, I live where the air pressure is ~10% less than sea level, and basic …

2018年3月21日 · What's the best books to understand the basic laws of thermodynamics and other things such as enthalpy, Carnot's cycle, entropy, Maxwell equations etc?

2013年5月29日 · What is the proof, without leaving the Earth, and involving only basic physics, that the earth rotates around its axis? By basic physics I mean the physics that the early physicists must've …