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Don't worry about scaling, and just do the subject if you like it. Honestly, it's not that hard to get 90+ in Engineering Studies.

If you take moments around joint number 1, forces X and Z pass through the joint, and so the only force resisting the turning moment of the external forces is force Y (since the system is in equilibrium). You'll have to work out the perpendicular distance between Y and Joint 1 (some combinatione...

Hmm, yeah I think I've got some stuff left over from when I was doing HSC Engo. I'll see if I can find the time to get them together and uploaded yo. I'll also generally be lurking aroundabouts here every so often - maybe once or twice a month, and I'll help out if I can :) It's not a dying...

All of these depend on the angle at which the projectile is launched yo. If you assume the angle stays the same for all values of your two variables, then you can simply manipulate the relevant motion equations to produce a function that describes the particular graph you want, from which you...

Especially since you can download them from the Board of Studies website, with marking notes as well for free?

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2008exams/pdf_doc/engineering-studies-notes-08.pdf Marking notes for each HSC past paper are available to pull from the Board of Studies website. Comprehensive enough imo, and gives you exactly what the markers are looking for.

In first year Engineering right now, did 2U math in the HSC and still got a band 6 in Eng Studies. Good math skills are definitely not necessary to do well in HSC Engineering. Took a bridging course for math, still rocking a credit average. Other 2U math peeps in first year Math courses are...

If by first year physics you mean that you don't need to know it for HSC then no, but the lecturer might cover something similar very briefly in the first week, and then you'll learn other stuff that'll actually be in your finals.

HSC Engineering Studies is set at a General Maths level. All you really need to know is very basic trigonometry, and how to sub something into an equation.

Go to the Board of Studies website, download all the past HSC papers with solutions. Do the questions. See if you can get your hands on a mechanics textbook like Schlenker - Guide to Engineering Mechanics, read through the parts still assessible in the HSC and do the questions. For mechanics...

s = displacement u = initial velocity a = acceleration t = time

Not sure if I'm entirely right, but this is how I think about most Physics questions: Because this question is about a generation of current, this would be related to motors & generators, and Faraday's experiment (I think), but less so to transformers (same topic, different concept). So then...

Shouldn't the initial slowing be due to a high current draw from the motor when it initially starts, due to the fact that the rotors are not moving? (and thus not generating any back-EMF) So then as the motor begins to spin up, the coils rotate faster through the stator field, which generates...

If I still remember it correctly, the depletion zone in a PN junction forms when holes from the P-type side and free electrons from the N-type side move across the boundary (being attracted by the opposite charge) and cancel each other out. As the electrons move, they leave behind positively...

You'll learn mechanics and stuff, such as forces in members, moments, friction and so on in engineering studies, which is covered and expanded upon in first year Engineering. You'll also be learning some more in depth stuff about the steel phase diagram, which helps depending on which school of...

Most of the stuff in HSC Physics is pretty watered down, so you probably won't miss anything if you just do Quanta to Quarks with the rest of your class, and benefit more from learning together with other peeps.

Doing past papers also works pretty well.

For the experimental question, part a independent is frequency, and dependent is kinetic energy. You should really read back on the photoelectric effect, and the early experiments done by physicists regarding it to understand more. part b would be your standard control variables, in this case...

Um, I'm not overly sure about this, but from memeory forward bias is distinct from a solar cell because when you put a forward bias on a pn type semiconductor what you're actually doing is connecting the p-type side to a positive terminal and the n-type side to a negative terminal, and then...

The sin(theta) in the formula is used to separate the component of the electron's velocity through the magnetic field from the component that is perpendicular to the magnetic field. In this case the given angle isn't relevant because it's an angle in a different plane which doesn't cause the...