Bozo's queries

[b^3]

Download a Plugin that will save pdf's by 'printing' them to a file on your computer, that way you can specify the pages that will be added to the file.
1. Download http://www.cutepdf.com/ and install
2. Open the pdf you.
3. Click print and change the printer to cutePDF writer and put in the pages you want, click print
4. When the dialog box comes up select where you want to save it.

[Lasercookie]

Does anyone here, know how to edit pdfs to get rid of the detailed studies your not doing. Cause I want to go to officeworks to mass print all my exams, but like 1/3 of the stuff is redundant paper that will be charging me more.

Since I print at home or school, I can print using Adobe Reader. I just take a look at the pages that I need and just print off those ones (you can restrict pages in the print dialog).

I don't know what officeworks is like.

You could use something like CutePDF and just print out the pages you need into a new PDF file. Or you could use Adobe Acrobat and actually delete the pages, but that would depend on if the file is unsecured. the CutePDF method is probably easier (CutePDF is a virtual printer that allows you to save files as PDF).

edit: Didn't notice b^3's post. I described the same thing that he did. 

[Bozo]

Cheers, worked perfectly.

[Bozo]

Hey, is anyone in possession of the heinemann teachers text book CD with all the practice tests/SACS on it. I'm looking for the interactions of light and matter SAC i.e light, waves, energy levels etc.

[Bozo]

Has anyone got any resources or information on what CRO signals are, and the graphs. I got no idea what they are.

[cranberry]

cathode ray oscilloscopes. They just show the pressure variations for light/sound waves. Just think of them as graphs. Most of the time they will just ask you to get the period/frequency/wavelength from them - dw bout it.

[cranberry]

I got a quick question from lisachem 2008:

Look at their response, shouldn't red light be more spread out? Or am I missing something?...

[HarveyD]

hey cranberry, just out of interest howd you go on that exam?

[cranberry]

easiest exam so far i reckon, you done it?

[Lasercookie]

Looks like they made a typo with the table. Read what they suggest in their justification: "The peaks in the red interference pattern are further apart than in the blue interference pattern." or in other words, the longer wavelength light will spread out more.

[HarveyD]

yeah found it okay, made a few silly mistakes though + explanations werent that great
how did you do this one

[Lasercookie]

Conventional current is positive to negative. The positive end is the long bit on the battery.

Follow the current along and pick one of the lines. Right hand grip rule.
I picked the right-most line, so current (thumb was pointing up).
Fingers give the direction of the field, and they are pointing left.

So answer is Z.

[HarveyD]

ah, does that mean the heinemann diagram is wrong (Attached)?

[Lasercookie]

I believe so, applying the RH rule doesn't seem to work out with the directions they've given. Either the current needs to be reversed or the field reversed to make that diagram correct.

[cranberry]

The diagram is right for both. Current is going in the opposite direction though. You can use the grip rule, but it's much easier to determine which pole is south and north (south - clockwise, north - anticlockwise). Then you know that field goes from south to north inside the magent and north to south outside.
The heineman diagram actually shows the "S" and "N" with the cool arrows which tell you if its clockwise or anticlockwise.