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I'm wondering about the life cycle of the stars of 1 solar mass, 5 solar mass and 10 solar masses, and I am receiving conflicting results. For 1 solar masses, does this occur? Nebula -> Protostar -> Red Giant -> Main Sequence Type G -> Red Giant -> Nova -> Planetary Nebula -> White Dwarf...

If there is a question that says, using the graph, determine the slope of the line, is the following way acceptable? The line starts at (0,0) and finishes at roughly (1, 1.6). You know it passes through exactly at (0.4, 0.6). Can you do m = 0.6/0.4? My teacher advises us to use the full...

Can someone confirm that I'm understanding the whole alignment and scaling process correctly? Let's say Math Extension 2. Say the cutoff for an E4 is 70% and you get 70% raw in the test. This will then be aligned to a 90 HSC Examination Mark. (Let's just say the Assessment Mark was the same)...

Did anyone do the Western Region MX2 trial? How did you go, and what did you think of it? For comparison, I received 96%

Did anyone do the Western Region MX1 trial? How did you go, and what did you think of it? For comparison I received 99% and thought it was a pretty basic test.

Does anyone have the Physics 2001 HSC solutions that they would be willing to upload online? It would really be appreciated. :) Thanks

Could anyone help where I am going wrong:

A particle moves in simple harmonic motion with acceleration = -49x. Initially the particle is 1m to the right of the origin. a) Find the period of the motion (easy) b) Find the maximum speed of the particle (I have no idea how to do this) c) Find the times when the displacement is 0.5m...

I'm interested in how to solve this question. The way I did it (finding n as 3, integrating acceleration to find v, then finding the amplitude, then creating an equation in the form x = acos(nt + alpha)) seemed too complex and gave me the wrong answer for alpha (i got a positive when it should...

Hello I am wondering how to do the following question: The velocity of a particle is given by v = 1 / 6e^3x ms-1 where x is the displacement of the particle. If the particle is initially at the origin, find the equation of the displacement of the particle in terms of t. I'm sure the solution...

Hello. Hey everyone, I'm wondering what estimated ATAR I would be looking at for my subjects. My school rank is now approximately 300, however the 2011 group was a really bad cohort. Our cohort is very similar to (and probably a bit better than) the 2010 group in which they got a school...

I'm having a problem regarding a specific harder induction question. I'm not that great at the harder induction (I've only attempted one or two), so it may be an easy solution. Question: For a sequence of numbers a_{1} = 2, a_{2} = 3 and a_{n} = 3a_{n-1} - 2a_{n-2} for all integers n \ge 3...

Hello BOS'ers. I have an in-class essay on Belonging which I have 50 minutes to write. With a few minutes of thinking time, I can write around 1000-1200 words. The problem is, my prepared essay is 1500 words, yet everything in the essay seems necessary. Can anyone assist me in shortening...