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I got that 2nd Edition of Physics book, but will it cover 2016 syllabus?
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Did you get an ebook? :3I got that 2nd Edition of Physics book, but will it cover 2016 syllabus?
nope, I got the hard copyDid you get an ebook? :3
where did you get that from?I got one :3
idk, it was some strange website :S Wait let me share this book here.where did you get that from?
Is thhis for the 2016 syllabus?I got one :3
you know that strange website doesn't open in Pakistan!idk, it was some strange website :S Wait let me share this book here.
http://gceguide.com/Books/Cambridge International AS and A Level Physics 2nd ed.pdfIs thhis for the 2016 syllabus?
Did you put it up on gceguide yet?
O.O what're you talking about?you know that strange website doesn't open in Pakistan!
I didn't scan them. I'm just sharing the ones i downloaded from other websites.I think CIE is going to sue us for all the ebook priating! The publishers won't be happy and it means a lot of loss for them
I don't know.Eddy currrents,Faradays disc,search coil,bainbridge spectrometer.
These arent there for 2016 right?
If you look at the syllabus and scroll to the last page you'll see all removed content.Eddy currrents,Faradays disc,search coil,bainbridge spectrometer.
These arent there for 2016 right?
If a raindrop is falling through air, we can think of two forces acting on it:View attachment 59797 View attachment 59798
I have posted the complete question for reference. But what I'm confused about is (b) (ii). According to the ms the new line will be below the original line reaching terminal velocity in shorter time. But if the sphere has a smaller radius thus a smaller surface area, the effect of air resistance will be less so it will take more time to reach terminal velocity.
So you're saying if I have 2 steel balls one the size of a football and other the size of a tennis ball, the tennis ball will reach terminal velocity first?If a raindrop is falling through air, we can think of two forces acting on it:
So when radius is reduced, both W and F will be reduced. However, W will be reduced MORE.
- W, the weight. This makes the raindrop fall down. W is directly proportional to mass of raindrop. The mass of raindrop is directly proportional to its volume. And the volume is directly proportianal to its radius CUBED. Therefore, W is proportional to raindrop's radius CUBED.
- F, the frictional force. They told us in the question (in the form of a formula) that this force is directly proportianal to radius. (To power one)
When the raindrop falls, its velocity increases so F increases and, at one point, W is completely countered and so the drop is in terminal velocity.
If W is very little (like in our case) it takes a shorter time for F to counter balance the W.
Yes!So you're saying if I have 2 steel balls one the size of a football and other the size of a tennis ball, the tennis ball will reach terminal velocity first?
OK wow well that doesn't seem practically correct but thanks anyway.Yes!
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