Physics Jesus here to save my grades

Cheers from Argentina, Prof. Dave! You are an awesome educator!

Now itself i watched the video fr the first timeee.... It is useful sirrr... I liked ittt..nd i hope ur service continuesss... Waiting fr more tutorials...

Sir can u make chapter playlist according to classes it's hard to find consecutive topic video one after another .

I just stumbled upon this video today because of an essay I had to write on gravity. I couldn’t understand anything in my textbook or even in other KZfaq vids, until I came across this one:D I’ll watch it a few more times to understand everything more clearly, but thanks so much for making videos like this!

Very well explained relating the content so well, tku

Thank u Dave for ur elegant explanation. And could u just check my understanding regarding hypothesis and postulate that I have mentioned below: While having a scientific method of studying on microscopic phenomena(atomic theory), at first, scientists make some postulates(assumptions) on atomic theory. Then next, they make hypotheses on the postulates they have made on atomic theory. The hypothesis is like "If these are our assumptions(or postulates) on atom then this will be the possible consequences". After that they test the hypothesis through experiments. If the hypothesis fails the experiment, they will change or modify their postulates to form a better hypothesis. At last if the hypotheses pass the experiment, the hypotheses will be accepted and will be considered as a theory as long as there is no evidence or experiment to conflict or contradict the hypotheses. Is this how a postulate and a hypothesis related to each other in scientific method of studying microscopic phenomena or phenomena beyond reality (like space-time curvature)? Please do reply whether my understanding is right or wrong. Thanks.

Can u make full ch on gravitation pl

Hello there I have a question regarding this concept what happen if distance between two objects will become infinity I put the values into the formula Fg = G × m1 × m2 / r2 so the value of r2 will become infinity ♾ any number divided by infinity will become zero that means Fg = 0 N but as i know gravitation force will never become zero as it tends to zero but never zero I am confused so much with this problem please conclude my problem

love your content dave….especially your math course its helpful...Thank you God bless you

Could u make a video explaining how the gravitational constant was calculated

Hello, what is the software you use to make your animations and presentations? thank you

Well explained. I'm trying to verify the value in gauss of the gravitational field of an object isolated (without another as referential), my guess is g=W/tan(60) where W is the wheight force (calculated through the product between friction/mass/acceleration) devided by the tangent of the angle formed between two tangents of the center of mass( crossing the vectors of the wheight and normal forces, friction and tension forces vectors). If you cast a solid object in space the object will rotate in two principal axis (axis A (left) and B (right)) this rotation will amplify the gravitational field of the object. On earth is possible to calculate the field of an object in equilibrium by quotient between the wheight force and the tangent of the angle formed amongst these axis. This conjecture agrees with the Feymann's diagramm, these axis represent coherent states of the gravitron wich amplifies the field of the object.

Ohh, interesting. I'm more excited for Modern Physics now since I can see there how Einstein further explained what is gravity. While watching this video, I was really curious as to why objects exert gravity on other objects, albeit by a negligibly small amount.

this video change my point about physics maths or chemistry❤️ well explained thanks👍

at 6:17 i have a question. so the radius between the COMs of the objects are still relevant. so. if something is light and really really close to the earth, would the acceleration be just slightly higher? and the inverse? (obv it'd be negligible, but still?)

your getting me through duel credit physics rn thanks so much

How do you write into the calculator -11 and times it. It comes out as 0 for me. Can you help?

Hi! Could you explain how you got the answer on the comprehension? I hope I'm not being a bother, but I just can't really understand it😅

Kind of confused by the question at the end, shouldn't the radius be 2.5 as they are standing 5 meter apart making 5 meters the diameter? or does "r" stand for distance between the bodies?

I understood ur lesson prof, just the problem is that, I got the incorrect answer for the question for comprehension. I got 4.20200 x 10 raised to the negative power of 10

so. im writing physics in 2 days and im just watching ur vids to study. thanx man. you make it a lot easier.

Professor, Great VDO I like it. But question when I think about black hole!! We knew it was a massive star before become a black hole. If we think about Newton formula, it should have the save gravity force for both before and after become black hole, right? since the mass of star remain the same. (in fact, black hole will loss some mass when released energy). Why so many people think black hole will have more gravity force than star? If the formula is correct, both black hole and star should have the same gravity force, isn't it? Can you confirm my understanding?

Newton said in the original explaination of the Newton's law of universal gravitation, he was describing the apple falling, then he just shorten the description to the apple fell on his head

How do i find m1?

ive been watching your flat earth videos and debates for a while, and my teacher just assigned me on of your videos to take notes on!! im so excited!! your explanations of topics are incredible and easy to understand!

FANTASTIC & SIMPLE way in explaining !! TQ Prof Dave !! :)

Very elegant. Thank you!

What would happen to the force of gravity between two objects if their separation distance is reduced thricefold?

Thanks Sir you are the best

Your theme song is awesome sir

The force is strong in this one

2:58 - is there proof why it is r^2 but not r^1.9 or r^2.1?

He is expert in teaching any subject in the world 😀

is that music 7:24 played in lifts?

It's a tiny force (from comprehension), but isn't it also because of huge the gravitational force from the Earth?

He reminds me of James Schrader, the Dr. Squatch Soap guy, if Schrader could explain physics.

I am from Bangladesh....i love physics very much...Thank you very much for this vedio....we can say this law g/wm

Anyone else feel like the algebraic manipulation at 6:00 is completely arbitrary? Why does "m" have to be the mass of the object and not earth?

excellent

Hello Professor just to clarify.. the acceleration of fall of a heavy and a light object doesn't depend on the mass because of inertia... but still the heavier object will hit the ground after the lighter object because of wind resistance ? correct me if I am wrong... And thank you for this amazing playlist which doesn't let me sleep at night... :p :)

Hey there, in many description of gravity, they use a trampoline with a heavy objects in the middle and small objects falling towards the center. In space there is no 2D trampoline and I can't quite extrapolate that demonstration into 3D space...can u explain it to a non scientific brain?

Thanks man very much

awesome video!

Great video! Another funny resource on Newtonian gravity is this one (actually it's more humor than physics but I enjoyed it )​@​

Why didnt the idea of gravity strike Newton when he was taking a shit (on the toilet bowl) rather than a nap under the apple tree? Na na ….just askin

Very nice video this has helped me with my AP physics C mechanics keep on the great work!

Sir gravitation depends on the oxygen or not

How did Newton make the formula for gravity using the gravitational constant that wasn't known until 100 years later

There are scales in our universe that are so immense, it's understandable if we can barely grasp them. What if at those immense scales, we don't yet fully grasp how density, mass, Electromagnetism, static charges, temperature, pressure, radiation, velocity, etc. behave on VAST scales throughout our cosmos? I hope we continuously improve our understanding over time because it would be foolish to think we fully understand these things. Especially gravity. I'm talking like the scales of galactic filaments, multiple galaxies interacting, and many more cosmic bodies & structures. We are getting better & better but some things are just so vast it's understandable we don't yet fully grasp them yet. I'm curious to see where things go as we advance our ability to study these things.

Why -8 exponent is the answer?

proffessor is th e gravitational value 6.67*10 to-11 or 9.8

Job well done professor. From ZAMBIA💪🇿🇲🇿🇲🇿🇲

Well done !

Good teacher

Potentially dumb question here: Does it matter if you use F=G(Mm)/r² or F=(GMm)/r² ? Are they both technically the same?

how it's determined the centre of the masses (Earth and Moon)? Why the moon is orbiting the Earth, is it because it is falling towards the Earth? If yes, why then the moon is moving away from Earth at a rate of 1.6 inches (4 cm) per year? If you have ready answers in your videos, please share the links, thanks!

Very informative content sir... Lets assume some situation: i) now you are steadily standing in some place with ur feet touching the earth's surface due to the so called gravity, ii) in sphericl earth model some other person is standing like you in just below the earth's surface opposite to ur position i.e exacy opposite side of the land mass, iii) he seems handing upside down from ur point of view and vice-versa, iv) now you are standing in the same place like before. There is a big hole near ur feat. If any object, for example if a ball comes in the upward direction from that hole against the so called gravity, according to ur view it is impossible, it breaks the law of physics. The same applies to the another person who is standing in the other side of the earth surface, iv) let the hole be created near ur feat and inserting a pipeline and continued till the other end (12,756 km diameter of earth) and another hole be created from there. From ur view the pipe is going downwards, but while it reaches the other end its emerging outwards from the surface, its weired, v) now u r dropping a ball into that pipeline below ur feet and the other person also doing the same. Now what happens! The ball from ur side travels to the other end and emerges from the ground and rises up to the other guy? After that what happens? How far will it go upwards? Will it fall back? If it happens what that means? From ur point we assumed it in (ii). Will the ball from other side reaches you. Plz dont say we cant build a tunnel like that, it is impossible, earth's core temperature will not allow it, gravity will act till the middle of the earth abd after that ball be crushed.. The above are fully assumptions. Waiting for ur reply sir...

I am understand you teaching

Why is r squared in the equation?

Doesn’t he contradict himself when he says that an objects mass does not affect its rate of free fall, and then brings up F=ma which shows a direct correlation between the two?

I am new here and the intro tho😂🤣😂🤣😂🤣 caught my attention,

Professor Dave grohl

Bro this is amazing

You just made my head spin like earth

"he had to invent calculus to do that" oh dear.........

2:35 Negligible? Quantum mechanics says: Hi

The apple is close to the earth and moon is much away as force is inversely proportional to the square of separation so the gravitational force on apple should be greater but why it doesnot happen?

Do you think that the gravity will not work properly. It will work better for it harbour and the gravity

bro got his cut inspired from Newton! lol😂💀

Newton died on this day(March 20 ,1727)..... Professor, Can you make a tribute video for this greatest inventor (focusing on all the scientific inventions made by him)?

4:00 that animation is poor and inaccurate, it shows the earth and the moon are tidally locked to each other which is wrong.

Why the moon not orbiting the Sun, but orbiting the Earth when we know the sun has enormous mass compared with Earth's? Something missing in my understandings =), if you can help!?

The Apple should of never fell on newtons head

Barycenter

Watching this video third time today.. there's something i don't understand but idk what it is.. maybe the fact that if the apple's mass is greater than the earth's, the earth would fall on the apple :p Professor can you answer these questions please.. 1) Just for confirmation, if the velocity vector of satellite becomes zero then it will fall to earth.. right? 2) what will be the case for satellite to stop moving in circular motion and travel in a linear path? Just an advice :) since I am not an English speaker I would advice you to not stop using heavy english words like "dismay".. I had to google its meaning lol :p Love from Pakistan :)

Sir isaac Newton was historical genius

Q: If the sun would stop rotating, then why don’t the planets fall into the sun?

Thank you, Dave!

You are expert in physics I love it professor 😊

Nice shirt

O my God Dave you are truly a Godsend ! I Love your brain. You are the Best! I'm going to try and email you. Thanks for all you do!

Thank you from Morocco 🇲🇦😂

bro invented physics and calculus

Newton and me got hit by an apple. Newton: now famous in the whole world and an legend of science. Me: got a big scare and felt uncouncues for several minutes.

I've just realized that it's easier in English than my own language 😵

I steel need to know how any object exert gravitational force

No way I like the problem at the end!!

Thank you Science Jesus👏

Hey apple had falled aside to him not in his head

yo did this guy finally showered

the hair goes crazy on god

❤

What is this ....

thanks.....i dont understand anything anyway🤣🤣🤣

pray for me i need to pass my test

Done.

The situation caused by gravity, the weakest force in the universe. where gravitational interaction makes its presence felt on the largest scale are galactic superclusters; Beyond this point, the gravitational effect disappears and as a result, all structures in the universe move away from each other due to the expansion of the universe. #gravitational #interaction #gravitation

I've been saved😥😓😭😢

who got the answers