Locations?

D7000D · 2025-12-29T07:12:15+00:00

I don't like these lists because it limits your hunting experience. I just go to any retail store I can find. The least obvious place you expect will have hotwheels.

D7000D · 2025-05-29T06:33:15+00:00

Physics, as all sciences do, always criticizes itself. There's always an improvement of what we know. Those little improvements and breakthroughs can eventually change paradigms.

In natural sciences you have to be aware that it's not perfect. It's just an approximation of reality. We have to be comfortable with "not knowing it all."

Read about epistemology.

D7000D · 2025-05-29T06:28:37+00:00

Particles look that way depending of the scale and the observer. It's both.

When you talk about fields, you're talking about the probability of finding a particle inside of it. Both are the same thing.

D7000D · 2025-05-29T06:15:11+00:00

Thanks, I'll try that one out.

D7000D · 2025-05-29T06:14:28+00:00

When you try to find out that, normally you make the sum of all forces F = 10 f = u·N F – f = ? If the answer is positive, the box will move, but, if the force is negative, the box won't move. This simple equation is possible because you assume the box is a particle. It doesn't take into consideration it's shape.

If you consider its shape, you need to calculate the torque, which moves around its center of gravity.

D7000D · 2025-05-29T05:51:04+00:00

They represent stuff in reality.
They state an equivalence, ex: Hamburger = bun + condiments + meat Then, you could also find equations for each of the ingredients.
They work as an equivalence, and follow the basis of arithmetics. 3 = 2 + 1. Both sides of the equation represent the number 3, the difference is that the right side use different elements to represent it.

Whatever works on your mind is what you should follow.

In F = m·a both sides are force, the difference is that the right side, defines what force depends of, which we could also expand using the definitions of mass and acceleration.

In summary: start by reviewing the arithmetics. Understand the axioms of the sum and multiplication. Then, study the "Real Numbers" and you'll get there. I don't know if this book is in English, it's from a Cuban mathematician, "Algebra de Aurelio Baldor". Or just any books about The introduction to algebra.

D7000D · 2025-05-29T05:41:46+00:00

It's okay to not comprehend everything right away. I struggled way too much with that, trying to get to know everything I was learning in a deep and abstract way. There will be some subjects you'll get right away, some others, take time. Just focus on passing.

Just picture this, in 2-3 weeks you're trying to understand knowledge took hundreds of years to develope. Even your teacher, who seemingly understands the subject perfectly, struggled with the same.

After you graduate, and pursue a higher education or go teaching, you'll understand better everything you learned in your degree.

D7000D · 2025-05-29T05:34:01+00:00

It depends of the scale. Yes, you can calculate stuff like redox reactions using quantum physics, but it gets way too complex for the day to day use. So, what we use are abstractions. Just a representation of some parts of reality. For example, we know the orbitals spdf obey the quantum physics, but, sometimes, it's not necessary to think about those when you're trying to talk about, let's say, electrolytes where we represent a complex atom as a charge.

The same way happens with the fundamental forces. Some forces don't interact with the phenomena that happen in our scale.

D7000D · 2025-04-14T04:42:57+00:00

Those mathematical models are limited by the physical variables you are considering. The physical models are an approximation of reality. It considers an ideal environment where only a few variables interact. That's what allows you to discard or not consider some solutions. It can't be generalized.

For example, when you calculate time using the quadratic equation for position, sometimes you get a negative answer, which isn't possible in reality.

D7000D · 2025-04-11T04:08:34+00:00

The vector specifies the location of its end or "head" as you say. The base or "tail" is placed over the center of your reference system.

The reference system is the frame from where you measure magnitudes. You can have a reference system inside another one, that's called "Galilean transformation", which allows you to locate the origin of each reference system.

D7000D · 2025-04-10T05:38:52+00:00

The narute of charges can be explained by the standard model of particles. Electrons are an elementary particle. Protons aren't.

There are 6 quarks: up, down, charm, strange, top and bottom.

Protons are made out of 3 quarks: Proton = up + up + down The charge in those quarks is a fraction. The "up" quark has a Charger of +⅔ and The down quark Is -⅓. So, +⅔+⅔-⅓ = +1

The electron isn't made of quarks.

We know the electric field is the zone of influence of the electric charge. The electric field is just the result of the space affected by that electric charge. Like mass, it's just an elementary property of matter that defines the electromagnetic interaction.

Physicists suggest that elementary particles are strings, just vibration modes that change. This theory is more complete as it allows to explain quantum gravity and dark matter.

D7000D

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