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MRI is more desirable when contrasting differing tissues and looking for variation within this tissue. It can focus on static and live images. Soft tissue is a particular focus for MRI technology. Diseases include tumors and heart disease associated problems. PET is more centralised focusing on...

aero buy this book: PHYSICS - Past HSC papers with worked solutions 2001-2008 compiled by Catherine Odlam - Science teachers association Good Luck :)

The gradient system employs an alternative linear magnetic field in combination with the internal large static magnetic field. This in turn creates spatialization and x,y and z plane dimensions from the precessing Hydrogen atoms within the tissue being examined. Additionally, this creates the...

The answer is B. C which states Lenz's law does not combine the statement with Faraday's law as the two laws must work in tandem for an EMF(eddy current) to be produced. I disagree with your teacher offering C as being correct as the missing words in that choice is including Faraday's law to...

Just a few more observations on this paper. Q1 is ambiguous two possible answers earth and the new planet so B and C are acceptable. Q8 is actually wrong in the answer booklet. They state D in the answer booklet but the real and correct answer is A based on the slope of the curve and Lenz's...

Guys, I am curious on users opinions on the new format/layout of next year's HSC Physics paper by the NSW BOS. From what i have heard/read the new format will have 20 marks for the 15 multiple choice with perhaps 2 marks on the last 5 multiple choice questions. i.e. Section I -...

Darkchild, Mate it's a pleasure....it's a good paper nevertheless and certainly everyone here should make use of it.... I think I might upload one as well soon... hehehe... these things are never easy... We will see... :) :santa::rofl::)

Hey darkchild, Some feedback: Q18 get rid of the what was and change to calculate or some other verb from NSW BOS terminology. There seems to be a lot of discuss, describe, explain questions and few mathematical brain teaser targeting Band 6 students. Try to include one of these somewhere in...

Yes.....Q5... I forgot... The question starts by stating a "bus made of light"... This sums up the rest of the question...mind you the answer is very clear and simple... Also the transformer question.... looking at it again reveals dodgy turns or a blotchy/poor image. I would have thought the...

The speaker cone should move to the left. Q18 speaker cone You should use left hand FBI agent and B is down and I is into the page making force to the left. I honestly feel the multiple choice was very straight forward although the way the examiners tried to twist the wording of question 5 is...

Good luck guys. I believe it's actually quite a reasonable and straight-forward test. i.e. if you have studied of course.... :)

Wow big big question.... I guess from my point of view is that Edison was quite vehemently opinionated about his own design of DC being the ultimate and was quite arrogant in the process. Edison ideally wanted Tesla to invent him some sort of concoction that helped him transport DC over long...

Not specifically.... The assumption is Yr 11 prelim is assumed knowledge for Yr 12. It cannot be assessed in HSC as the syllabus has 2 separate outcomes for each course. To the OP, the answer is generally yes but look out for questions that integrate skills into these outcomes or worst yet...

http://www.boredofstudies.org/view.php?course=13

Molecular oscillators(black bodies) are important for the world of Quantum Physics and Max Plank and E=nHf Furthermore, the UV catastrophe and the expectations of a linear relationship of molecular oscillators (when heated) was assumed until the experiments showed strange anomalies. Hope...

This occurs through charging by friction not by contact. By simply touching two neutral object together there is no charge distribution/polarisation that occurs.... they are neutral to begin with and will be neutral afterwards as well. If however, they are charged by friction i.e. electron...

The - part of the induction coil is attached to the cathode(-) electrode of the Maltese cross and conversely for the + and anode. Your best bet is to hook up the induction coil and test for induction by observing the crackling light. Ideally, your teacher should be doing this as X-rays can...

Whenever an object is neutral charge it has equal amounts of positive and negative charge hence it is in equilibrium with no clear polarisation observable or recordable. By simply earthing an object the possibility of a charged object either + or - can become neutral by releasing these excess...

There is a quicker way... see my above post.. Use that equation above and go with -Sy=Uyt -1/2at^2 Where the height of the cliff is placed in for Sy and the right side of equation becomes -4.9t^2 Then solve t using quadratic formula and take + value and viola you have total time of...

Excellent answer 3unitz. To elaborate further yes the ceramic top acts as a safety platform to perform two operations: 1. To act as an insulator and resist any conduction between pan base and other metal surfaces. This in turn eliminates the reduction of eddy currents as these are...