Recent content by alodia

then what kind of question is this? someone rephrase this: is the act of gaining mass considered a 'motion'? into a "physics" question please, because apparently I'm too stupid to be in this forum...

... didn't answer questions..

say a guy is eating and gains mass does this act of gaining or losing mass considered a motion? i know mass has a property called 'inertia' (or is it the other way around where inertia has the property of mass?) and inertia is the 'resistance' to motion or change in state of motion but i don't...

so i understand that if there's a piece of metal between 2 repulsing magnets, the magnets attract to the metal as well, and the repulsion could cancel out the attraction... right? i mean is this even true. if not why not... if it is true, then is it possible to have 2 wheels of repulsing...

please examples

1) How and When do you multiply or divide or combine units? 2) Is there an intuitive understanding or experience for every permutation of derived units? example: distance is a natural phenomenon we experience and understand intuitively as space between two points or positions we've denoted...

and this is precisely the problem with education in general today. anyone who needs the education clearly haven't had 'formal studied' before. even if they had, any new knowledge to be learned makes their prior knowledge 'informal' so please it is better to use examples and explain from the...

thanks guys, and thank for jimmy for some references, i'll be checking out that book

what about an objecting in complete vacuum of space under no influence of any forces. does it have energy? does it have kinetic energy? does it have potential energy?

yea i saw that khan academy video...i'm getting an inkling that energy is ... some internal stuff that can only be transferred, like in this slide example, and how much stuff you got depends on how much mass you have... but then I'm confused about how something moving faster has more 'stuff'...

i think a better question is why is energy necessary? or what was human trying to solve / understand that begets the idea and concept of 'energy'? because necessity is the mother of all invention, so what was that turning point in history, what was that question or series of events that led to...

if the net force is non-zero, then there must be some change in acceleration, and therefore velocity and therefore transfer of energy. how's it possible to "apply a non-zero resultant force without transfer of energy."?? also, i get the textbook definitions.. but for me and many others who...

thanks but you've given me another rabbit hole rather than some satisfying treat so i can sleep well tonight

i'd explain in terms of the purpose of physics. so it begins something like this: we humans, a species among many species, in this great cosmos have always wondered how stuff works. and we humans by trial and error, by observing, by experiments, by representing ideas with numbers aka...

I've been doing basic physics and i understand that to describe the Kinematics or trajectory/movement of things, we use the relationship between position, displacement, velocity, acceleration, and time while to describe the Dynamics or cause of motion, we use the relationship between...