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you've covered a 3 days lecture in 3 seconds and explained it way better than my lecturer ever could, thank you.

Hello if anybody having trouble to find right answer for last example. There is a mistake at final temperature of H2O. (27-21)=6 C. and the answer for last question if you round the answer is 128 J/Kg C. The video was really super teachful. Thank you.

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seriously bro no intro no outro just straight to the point in the most simple wording possible

In the final problem you made a mistake. The change in T for Q(h2o) should be 27-21 not 27-20 and the answer should be 127 J/KG*C

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in IB physics rn and this literally covers 50% of topic 3. Thank you sir

What a legend sia, for some reason, all i needed was to watch like the first few minutes of the video to have a greater understanding of latent heat as compared to when im in school learning this for at least 2hrs TY SO MUCH TEACH

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Physics final tomorrow morning. Thank man!

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A few tiny mistakes have already been mentioned below, but the video is otherwise EXTREMELY helpful!

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When talking about the green house effect, people count vegetation as a dark material but vegetation is sculpturallly complicated, so that some bits of leaf are in the light and many others in shade so that they are often categorised as dark and so as collectors of heat not reflectors of visible light, when all sunlight falling on the reflective top of leaves get reflected back up skywards. If you are taking a photograph of leaves, the pools of light on the lit bit of the leaf annoyingly come out as a stronger shape than the actual leaf comes out as being, the shine coming off leaves often often comes out as light, as bits of white in the photograph it comes out as white. If you take a photo of the sunny side of a tree, its colour is much lighter than the other side but even this lighter side does not relfect the shinyness of leaves because on the sunny side of a plant you see the underside and so the non sunny side of the leaves that are above the camara and as leaves are often curved you also see the sides of leaves that are dark because curved away from the sun. I think all this should be mentioned when people categorise the effect of vegetation on climate change. Another aspect of the usefulness of vegetation as a coooler of the world, without mentioning how they take carbondioxide out of the air, is how very shinny hay and straw are, so this dead vegetation would, if left on the ground, both aislate what is a pretty good material as far as storing heat is concerned, earth, i have read that earth has the same ability to store heat as brick but also, hay and straw are very reflective grasses are full of glass, silica, which should put animals off eating grass, so hay and strawlike live leaves and probably more so, also reflect sun light back towards space. Have you thought how much land world over is left fallow for a year where wheat is grown? Half as much as is used to grow wheat, though this is not an agricultural habit used in modern Norht America? Also lots of land is ploughed in spring, just before the heat of summer, in preparation for autumn planting of wheat so leaving so much earth to accumulate heat, that it is absolultely mind boogling. once it did nto matter how much of a material which was a good accumulater of heat was left bare to be heated by the sun but now things have changed and it does matter.

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Thank you so much my guy,,,u helped me so much is the confusion I had on thermodynamics.... thanks thanks thanks God bless u....I took some weeks trying to understand this but u helped me in 31 minutes,,, thanks my guy

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Q=ML -use whenever u have a phase change Q=mcAT -use whenever the temperature change

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Thank you so much for this vid. Now I undestand it well but there's a tiny mistake you made on the last problem. You wrote 27-20 instead of 27-21. Thank you soo much.

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WOW you explanation is perfect but in the last problem about the metal and water , in heat of water you compensated the change in temperature 7 but it should be 6

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THANK YOU SIR FOR YOUR EFFORTS IN ASSISTING THE WORLD WITH PHYSICS I M FROM SOUTH AFRICA BY THE WAY, BUT AS I WAS DOING THE PROBLEM ON MY OWN I DISCOVERED THAT THE ANSWER IS 127.6 C . I THINK THE MISTAKE ON YOUR PART OCCURRED WHEN YOU WERE DETERMINING DELTA T , INSTEAD OF INITIAL TEMP 21 YOU HAD 20 DEGREES CELSIUS

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The metal in the word problem probably is bismuth. Thx you for video!

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