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Ahh ok.

yup its 2 unit + extension 1(1 unt), many people call it 3u maths

Yes I believe they do, they are used in the home. aren't usb/plug outlets already existent for phones? hmm, infared.. there's already bluetooth Not sure what you mean by invent.

Hi, is the idevice jailbroken? If it is you can use programs such as ifunbox to get into the system files, however the music will be in itunes style format. By itunes style format it will be in like semi encrypted, e.g. AI49FJF948F or something like that and have a few songs within (all the...

Yep, thanks someth1ng and nightweaver! makes sense haha. Any reason why you guys use U(g)? i believe wiki uses that too

so in the HSC sample answer, by "zero gap" does this mean overlap in the conductor?

so in the sample answer what would be the temperature? is the zero gap overlapping or just touching for the conductor? <-- bit confused there

I think there's an actual numerical value~ Would r= radius of earth work? My logic at the moment: Ep is the gravitational potential energy required to move an object (Peter) from infinity to a point (earth) = -GMm / r = - G M(earth) m(peter) / r(earth) So therefore to the kinetic energy...

Hi guys, I have a question regarding energy bands. My teacher said they always (even at 0K) overlapped however according to the HSC sample answers they don't. Can someone explain this to me please? is this answer from Board of Studies at 0K? or at 273K? cause I believe at 273k the bands are...

Hi sorry to rebirth this thread but i'm having difficulty in understanding the whole concept of tower B. I kind of understand tower A, but say I threw something downwards from tower B, will this mean that it will fall for a bit and just stay stationary after 10m or so? I a human were to walk...

How do you do this question? " Calculate the energy required to lift Peter (mass 70kg) to a location where Earth's gravitational field is negligible" I'm unsure of the radius to use in the Ep formula, it won't be zero? what would it be?

93

4

yes it would, it would possibly boost my previous estimate from 65-70 to a 77-83

65-75

.75-.85

I'd say band 6 is possible for you for maths 2u and 3u, the others are questionable however a low/high band 5 for the other subjects is definitely a possibility.

94

97.5

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