# Search results

1. ### ipod - worth it?

Hey guys right now i have a creative 64mb mp3 player( it can only hold about 15 songs). do u think an ipod would be worth getting? and do u recommend 10Gb or 20 Gb? any suggestions? Thanks :)
2. ### HSC aligned marks

Hey just want to clarify this... Assessment Marks: Student 1 : 90 ( rank - 1) Student 2 : 85 ( rank - 2) HSC exam mark Student 1 : 87 Student 2 : 89 What happens to their overall HSC aligned mark? Ive read in other threads that one person will get the other persons mark.... im...
3. ### Silly Mistake

Hey For the 2004 HSC exam q1d) i got b = -1 instead of -2 (lose 1 mark) so for the next part i used this value and did everything correctly- do i lose another mark for using the wrong value? THanks
4. ### Questions!

1. What is the colour of cathode rays ? (when they glow at the anode?) 2. When an electric field is placed across a semiconductor: A) electrons in the conduction band move in the direction of the field, while holes in the valence band move in the opp direction to the field. B)electrons...
5. ### gravitational potential energy

if they ask us to calculate this for an object.... using the formula E = - G m1 m2 -------------- r then do we leave the answer as a negative?
6. ### HSC 2002 Multiple Choice q 10

Hey I would have thought that the induced emf would be max, when there is greatest change in flux....at point Q ( i thought the answer is A) pls explain? Also, for the same question, if we were asked to draw graphs of the current against position, flux against position, torque against...
7. ### Keplers law

in the formula.... T^2 / R ^3 = 4pi^ / GM is R, the ORIBITAL radius? or just the radius of the planet??
8. ### A few questions...

1. HSC 2003 Multiple choice q14 2. just want to confirm this regarding circuits In series : the voltages of the components should add up to give the main voltage? and the currents remain the same for all the components right? Also, what happens to the resistances? In parallel : the...
9. ### Motors and Generators - Success one

Hey i have a few questions from this chapter in success one......especially the ones with the diagrams! ( i dont have a scanner) sorry could u guys plss explain the following questions in multiple choice : 1 2 6 (how can u tell which is positive? and whether it slows down or not?)...
10. ### Another photoelectric q!

this is from the success one book- q 8, But i dont really understand the answer. i know that the intensity of light is proportional to the number of electrons... ------------------------------------------------------------------------------------------------ During an exp, a beam of uv...
11. ### Photoelectric effect

Which of the following was the first to provide a real explanation of the results observed in the photoelectric effect? a) de broglie b) hertz c) einstein d) planck ummm im a bit uncertain.....between Planck and Einstein Also, can someone pls tell me what EACH of the above scientists...
12. ### Multiple Choice HSC 2001 q5

Can anyone explain plss? Thanks
13. ### Cross - section Area

how does the cross-sectional area of a conductor affect the current that passes through it? does it affect anything else other than the current? Thanks
14. ### Evidence for the special theory of rel.

dialated lifetimes of mesons penetrating the Earth's atmosphere - What are Mesons? Also, what would be evidence for length contraction and the relativity of simultaneity? Thanks!!
15. ### End user and RAD

i get confused with multiple choice questions involving this. i know end user is when the actual end user creates a piece of software..... but for example, from the 2003 Catholic paper: "Bob runs a small window cleaning company. he has decided to computerise his business to keep a...
16. ### the software developers view of the hardware

For this topic, do we need to know about Line feeds, carriage returns...etc...and know how to use them in algorithms? If so, can u pls explain the difference between Line feeds and carriage returns? Are there any other terms we need to know? Thanks a lot!!
17. ### Asymptotes

i know how to find horizontal and vertical asymptotes for curves...... but do u know if there is an oblique asymptote? eg: y = x^2 / ( 3 - x) is there any special trick ? :p Thanks
18. ### how well did i do?

im pretty sure i got around 85 ish / 120 is that alright, in comparison to everyone ? Thanks
19. ### Rectangular hyperbola

For a rectangular hyperbola, eg: xy = 5 .... what would be the foci, directrix, length of major axis.... and any other important features? Thanks!!
20. ### Converting....

Water samples from a certain oyster farm were found to be contaminated with 9.5ppm of lead. ( assume the density of the solution is 1g / mL ) convert 9.5 ppm to a concentration of moL/L Thanks