JG is the best , give this guy a Nobel prize already .it's not easy for a single person to understand thousand theories created by thousand scientist over thousand years.
no wonder you have 4 million subs.....I am watching this through the physics playlist and oh my god.....you have covered every topic ....literally every topic that is taught in my college and I can never be enough grateful....thank you so much!!
You have a video on every physics chemistry and mathematics concept under the sun... And yet you sound like a 24 year old ....... Just how Genius are you?? ❤❤
helo idk what do u mean but i think this guy is awsome he explain everything and make it look easy he is talented i could say and sorry for bad english but i want to know what do u study and what is apsilon because i would like to be an engineer and this guy helps me a lot@@scalowelmvzzle5135
@@wanggaeparkgae The book (at that time I used it) is called College Physics (OpenStax). It’s a free digital book that is pretty good (more Algebra based). Recently I have been using Physics for Scientists and Engineers 8th Edition (more calc based) that we use at my college, in which also you can get for free on Acadameia or you can buy a physical copy.
Thanks so much this was really helpful but in the previous video you negated delta L when writing the formula for compressive strain, does this mean it's negative whatever formula you use?
A uniform wire is subjected to longitudinal tensile stress of 5 * 10^7 Nm^-2. If the overall volume change in the wire is 0.02% , then the fractional decrease in the radius of the wire is?
well, thats the volume equation of cylinder not area, plus we should calculate the face thats bearing the load or weight...so it should be the area of circle
Thanks for sharing, this tutorial is very helpful. One question please, if the rod was hollow, the cross-sectional area would still be calculated the same way?
300kg is the mass of that object, and to find how much force that mass is giving downwards under the earth's gravity, we have to multiply the mass by gravitaional acceleration which is about 9.8....
Okay: A Force of 80 N is exerted on a *right prism* attached to the ceiling which's length is 5 m. It's final length is 9m, what is the elastic modulus? Explaination: Modulus = stress/strain Stress = Force/area Strain = change in length/ initial length Stress = force/area = (80N/25m^2) = 3.2 Pa Strain = change in length/original length = (4m/5m) = 0.8 Elastic modulus = stress/strain = (3.2 Pa/0.8) = 4 Pa Jesus loves you!❤✝️Repent
that's the Gravitational acceleration which is 9.8ms-2 OR 10ms-2 [Weight = mg] which is Mass x Gravitaional accerlation so when a mass is given to convert it into a force(weight) we must multiply it by 9.8 according to the equation so that we can get it as Newtons or Kg ms-2
300kg is not a force , so we need to apply the formula F=ma , F=(300)(9.81). The value 9.81 is the gravitational acceleration value in physics AS level.
Strain has to be positive, the reason we have the negative sign in the compressive strain's formula is because we get a negative value of ∆L as the final length is less than the initial length and the negative sign cancels the previous negative sign to give us a positive value.
Physics Video Lessons: www.video-tutor.net/physics.html
Why hasn’t this guy won a street nobel prize for the help and understanding he provides in such easy and quick methods👏🏼. Helpful af.
Cant wait for the Netflix doc on this guy. The Last Tutor...and I took that personaly
JG is the best , give this guy a Nobel prize already .it's not easy for a single person to understand thousand theories created by thousand scientist over thousand years.
no wonder you have 4 million subs.....I am watching this through the physics playlist and oh my god.....you have covered every topic ....literally every topic that is taught in my college and I can never be enough grateful....thank you so much!!
Now he has 8.49 million subs
You have a video on every physics chemistry and mathematics concept under the sun... And yet you sound like a 24 year old ....... Just how Genius are you?? ❤❤
not apesilon and delta pricise defination of the limit
helo idk what do u mean but i think this guy is awsome he explain everything and make it look easy he is talented i could say and sorry for bad english but i want to know what do u study and what is apsilon because i would like to be an engineer and this guy helps me a lot@@scalowelmvzzle5135
This really goes well with my book. Thank you so much Mr. Tutor!!!
May i know the title of your book, sir?
@@wanggaeparkgae The book (at that time I used it) is called College Physics (OpenStax). It’s a free digital book that is pretty good (more Algebra based). Recently I have been using Physics for Scientists and Engineers 8th Edition (more calc based) that we use at my college, in which also you can get for free on Acadameia or you can buy a physical copy.
@@ginogamboni689 Sir thank you so much! ♥️
You are the best and deserves a trophy 🏆 ❤
very help full god blees you from Ethiopia.
17:10
Organic Chemistry: The shape of the cube will deform a little
Also Organic Chemistry: p a r a l l e l o g r a m
that trouble looking 8 and the other make me laugh involuntarily .thank you so much.
thank you this was very helpful
I like how he says modulus
I was just going to comment that sand then I seen you already commented that😂
......yes Elastic Modulus = Stress/Strain?
Jesus loves you!❤✝️repent amd God bless
the god of tutorials almost everyone at my university knows the letters JG KKKK
Bu dersten de kaldım. Thx from Turkey
Thank you very much for sharing knowledge
Thanx , It's very helpfull
This guy is amazing
Thank you from Kazakhstan!
That is great, you helped have me 👏🤝
It's really of help🙏
is the cylinder in the first question closed on one end or both ends??
Thanks so much this was really helpful but in the previous video you negated delta L when writing the formula for compressive strain, does this mean it's negative whatever formula you use?
Guys there’s no time make it 1.5🏃🏻♀️😭
thanks man I really appreciate
A uniform wire is subjected to longitudinal tensile stress of 5 * 10^7 Nm^-2. If the overall volume change in the wire is 0.02% , then the fractional decrease in the radius of the wire is?
This question is a good one, this is an example of things you can calculate with these formulas
Thanks alot man ure de best
You're a GOD
Can you make a video about crystallography?
Why does it work when he uses centimeters as the area metric, but meters as L initial? I thought you couldn't combine cm and m?
Please, I also saw questions involving angles in shear modulus
In the first problem should the area of a cylinder would be equal pi*r²*height?
I was confused by this too.. He's real great though
well, thats the volume equation of cylinder not area, plus we should calculate the face thats bearing the load or weight...so it should be the area of circle
Thanks for sharing, this tutorial is very helpful. One question please, if the rod was hollow, the cross-sectional area would still be calculated the same way?
You would substract the area that is hollow from the area that is solid and continue this way.
is the young's modulus included in this video??
that is the elastic modulus
@@ibhadeerua9420 both are same
Yes it is
Jesus loves you!❤✝️Repent
In all my subjects now in college I follow you in explaining all the subjects I have and you are really good 🫂
Why does the area of a cube length x width instead of 6a^2?
How did you get that large number of tensile stress on 1st questions? Please? 😢
I think its arbitrary because tensile (or normal) stress = axial force/area
Yup 🙂
Jesus loves you!❤✝️Repent
At 3:21 my letter A is equals to 7.326x10^-9. Am I wrong?
i got that aswell
where does the 9.8 come from when dealing with the force value?
Gravity is 9.8
9.8 it's a gravitation
W=mg
There for:
W=weight
M=mass
G=gravity
Wow thanks
In point (c) i typed it and that was the answer 5.10^6/25.10^9 = 2.10^14 ? Is there something wrong with my calculator?
mind the exponent and decimals
In the first problem, why is the delta L 0.004278? But the one before that is 0.4278. I'm confused.
Jethro Tuppil converted men
@@nonorv3095 SHIT oo nga no HHAHAH thank u so much MEN
@@ireliamain1738 napatagalog ah HAHAHA
@@markstephen9307 Mahirap na nga tong topic na to magpapakahirap pako kaka Ingles 😂
@@ireliamain1738 point taken HAHAHAHA
What is elastic modules of whole earth
Who is here 2024😊
where does this formula magiclly come from?
im sorry, a bit confused. why does the 300kg needs to multiply with 9.8? where did the 9.8 came from?
Gravitation constant
In short g.f=m×g
300kg is the mass of that object, and to find how much force that mass is giving downwards under the earth's gravity, we have to multiply the mass by gravitaional acceleration which is about 9.8....
How are u guys getting negative exponents as the answer is my calculator wrong
THANKSS
I need an example of how to get the modulus of elasticity
Okay:
A Force of 80 N is exerted on a *right prism* attached to the ceiling which's length is 5 m. It's final length is 9m, what is the elastic modulus?
Explaination:
Modulus = stress/strain
Stress = Force/area
Strain = change in length/ initial length
Stress = force/area = (80N/25m^2) = 3.2 Pa
Strain = change in length/original length = (4m/5m) = 0.8
Elastic modulus = stress/strain = (3.2 Pa/0.8) = 4 Pa
Jesus loves you!❤✝️Repent
Where does 9.8 come from?
that's the Gravitational acceleration which is 9.8ms-2 OR 10ms-2
[Weight = mg] which is Mass x Gravitaional accerlation so when a mass is given to convert it into a force(weight) we must multiply it by 9.8 according to the equation so that we can get it as Newtons or Kg ms-2
Where did 9.8 come from?
Gravity
Why the have to multiple mg is 9.8 in first question
300kg is not a force , so we need to apply the formula F=ma , F=(300)(9.81). The value 9.81 is the gravitational acceleration value in physics AS level.
hi guys may mga taga ue ba dito
in no.2 how can the compressive strain be positive ?
Strain has to be positive, the reason we have the negative sign in the compressive strain's formula is because we get a negative value of ∆L as the final length is less than the initial length and the negative sign cancels the previous negative sign to give us a positive value.
isn't 25mm 0.025m?
1-b i got 427.6×10³m
Is it right or not any one plz tell me
Why did he multiply 300 by 9.8
To turn force from kg to newtons
area of a cube is 6x length^2
Area not volume
We are looking for the cross-sectional area and not the total surface area.
This is what a noob speaking for itself looks like
@@hitsubitsa5039 thanks man i was also confused
👏👏👏👏🙏🙏🙏
My calculator is giving 1.069521218x10^13 😭
your drawing is funny.
🫂💜
ez
Why did u multiply 300 by 9.98
Amount: 1 kilogram (kg) in mass
Equals: 9.81 newtons earth (N)
@Ahmed Hamdy n is the same as mg, newton equals to mass x gravitational acceleration