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@sync822 23 күн бұрын
thanks helped alot
@nassimchraiti7057 Ай бұрын
How can I get this file
@Obaidrahman9710 Ай бұрын
Seriously speaking, how would that massive leaver even work if the Romans could simply cut the rope. I do not even know what type of material they used for the rope to lift a possibly 15000KG ship. Those ships were massive with a lot of people (500) and heavy artillery such as catapults etc.
@burrowsphysics Ай бұрын
@@Obaidrahman9710 My thought would be this weapon would only work if the boat is very close and if so the soldiers on the boat could be occupied by defending archers and not be able to cut the rope! (Purely speculation my knowledge of the history of this is very limited!)
@allabouttheracks 2 ай бұрын
This was excellent.
@mycumdump6352 2 ай бұрын
smack your lips louder, please
@joe.h-7322 3 ай бұрын
I really felt those “that’s not really good enough” s 😂
@fsa.35 3 ай бұрын
Thanks 😊
@jimmyjim5882 3 ай бұрын
Why the metal spoke wheel is in the direction of Anti clockwise ?
@SarveshXD 3 ай бұрын
Great video! very helpful👍👍
@TheDARKOMETER 4 ай бұрын
This is really good!
@duckyrikii 4 ай бұрын
thankyouuuu!
@liaweissmann3015 6 ай бұрын
Hi, can you explain what material have you used to do the circuit? Thank you.
@squidwardsbussy 6 ай бұрын
do u wanna play fortnite duos with me
@squidwardsbussy 6 ай бұрын
nvm u sound british
@MerlinSunch 6 ай бұрын
Thank you so much. And one think that might help is that, you need to hold the paper/ phone screen perpendicular to your desk not on it
@darcy4522 6 ай бұрын
I sometimes struggle on the harder questions like with laptops being at angles opening. I find it hard to recognise some of the angles and perpendicular line of action. The ones that arent apparent. I dont know why, I just hope it clicks like the rest did at some point. Videos like these really help. Thank you.
@josephh067 6 ай бұрын
for number 30 why do you divide by 4 at the end
@AR2K77 6 ай бұрын
31:55 isn't your reason for choosing option B basically what option A implies?
@1_HACK3D_Y0U 7 ай бұрын
thanks for the great vid
@ufrsn 7 ай бұрын
Great video
@YukonD2 7 ай бұрын
👺👺👺👺👺👺👺👺👺👺👺
@justineverett5012 8 ай бұрын
thank U
@IQTIDAARISMAIL 8 ай бұрын
Thanks for the great vid
@tanishshah6536 8 ай бұрын
can you make a pdf of your topical question and then put it in your videos?
@justmustafa5513 8 ай бұрын
idk if you're going to see my comment, but I love you bro, all this for free is mad
@AyuenDavidMayomAtem 8 ай бұрын
u are so great sir
@myan_mi 8 ай бұрын
For part a, how do we know the phase difference?
@alexhunderson9778 9 ай бұрын
11b should be X(-35)not +
@ShravniChavan-v3o 9 ай бұрын
Thank you for the well paced explanation because of you I scored 167/170 in Physics in my mocks with A*!!
@hm.cooking669 9 ай бұрын
❤
@takdirsaiful628 9 ай бұрын
Hi is dis for ocr a?
@burrowsphysics 9 ай бұрын
pretty sure this is for AQA A but the electricity questions are pretty much the same in both
@storm_1784 9 ай бұрын
Where is section A
@karlaGarto-t1h 9 ай бұрын
Guapo!
@bigg.grizzlybear2670 10 ай бұрын
1:41, Why did you use the parallel formula for the two 30 ohms resistors? Are they in parallel the two 30 ohm resistors?
@burrowsphysics 9 ай бұрын
Yes there are 2 parallel routes taking you from X to Y. One with a resistance of 60 (30+30) and the other with a resistance of 40 (20 + 20), hence the use of the parallel formula
@metalheadphysicist 10 ай бұрын
amazing video
@Aleeza-r2p 10 ай бұрын
This was genuinely so helpful, thankyou so much because I can never seem to find good exam questions on youtube.
@blinkyrob182 10 ай бұрын
Excellent video - thanks for the upload 👍
@fidaaghanem2121 11 ай бұрын
Is the wasteful energy always thermal energy?
@burrowsphysics 11 ай бұрын
There is often more than one type of wasted energy by all processes produce thermal energy to some degree. However remember that sometimes the heat is useful energy e.g. a kettle so heat is always produced but it is not always waste
@pratyasha279 11 ай бұрын
is charge carrier density different to/same as number density?
@burrowsphysics 11 ай бұрын
Yes same thing
@pratyasha279 11 ай бұрын
Sir do you have a video about all of the derivations we need to know (1st year OCR physics) ? Kindly suggest..
@burrowsphysics 9 ай бұрын
No I don't, it i has been a while since I taught OCR but I don't recall students having to know derivations (might have changed since however)
@pratyasha279 11 ай бұрын
can we make summary sheets for each module based off of these videos (as another piece of revision)? Kindly suggest
@burrowsphysics 11 ай бұрын
I wouldn’t recommend that. Too many people consider making notes revision, the only real way to revise physics is practice questions and seeing constantly how to answer better
@pratyasha279 11 ай бұрын
Alright sir, thank you!@@burrowsphysics
@Ultimatevid26 11 ай бұрын
In the question at 17:42 can not solve it with the E.M.F = V+Ir formula, because when I try to solve it the r comes 0 ohms?
@ethan0173 11 ай бұрын
for the last question, can you not find that the horizontal component of T is T*tan24, therefore you can use pythag (root T² + T*tan24²) to find the hypotenuse which is the perpendicular distance from the pivot
@ethan0173 11 ай бұрын
then do the hypotenuse*2.5 =8F and then solve for F
@yall2842 Жыл бұрын
4:47 Why does the displacement time graph start at a displacement of >0?
@burrowsphysics 9 ай бұрын
Well the position where displacement is zero is entirely arbitrary so why not start > 0 (or less than zero for that matter). You can make whatever point you like a displacement of zero (the origin) You do often see the initial position defined as the origin so having a displacement of zero but there is no rule saying it has to be and sometimes it is useful not to have the initial position = 0 displacement
@legendaryarchie6512 Жыл бұрын
Whatsup Neil goldman
@edwardmerritt358 Жыл бұрын
But this doesn't work if your X values are different for each data set. Do you have a workaround for that? For instance, if your coordinates for one set are 1,10: 3, 13: 5, 16 and for the second set they're 2, 12: 4, 15: 6, 18 the graph will only use the X variables from the first set and not use the 2nd set of x points.
@burrowsphysics Жыл бұрын
The solution that occurs to me would be to use the biggest values in the first set of data.
@idiaics Жыл бұрын
on number twelve why are we transforming kw to w if the result is in kw??
@burrowsphysics Жыл бұрын
Fair question. Out of habit I always change everything into SI units at the start, could have saved time by not but I tend to think that is a good habit to be in
@IMRANA-q1v Жыл бұрын
crazy how this was actually my hw.
@itaniloagotobedza2528 Жыл бұрын
Thank you
@jamespeter9063 Жыл бұрын
felt like I got told off throughout the video
@floce7080 Жыл бұрын
Word😂😂
@0ned Жыл бұрын
7:50 See James DeMeo and Maurice Allais on Dayton Miller. The ether rotates slightly faster than the earth, like a gentle breeze on a high speed sailboat keeping time with the wind.
@0ned Жыл бұрын
That's why Michelson & Morley found barely ten mile an hour ether wind in a stone basement at sea level but Dayton Miller found much greater speed ether wind and with regularities at times of day and year in a wooden and glass structure atop Mount Wilson.
@0ned Жыл бұрын
To paraphrase Marco Todeschini, Relativity is Galilean, Classical Invariance.