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In an experiment: Validity refers if you meet the aim of your experiment. This involves controlling variables (apart from the independent variable), having a control in some cases (usually in biology experiments), minimising all systematic errors and random errors (by taking multiple...

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Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! My insights do not appear to show the BRAGGS popping up in the S/A.

No. Even if you get a 90 atar, you will still have a 89.95 atar in it. It's like if you have $5 you still have $1

the current made in the coil generate a magnetic field such to oppose the magnet (lenz law), hence the magnetic field in the coil will be down (as the bottom of the coil needs to be south to oppose the south end of the magnet). Due to the right hand CURL rule, the thumb faces to THE NORTH...

89.95. get rekt.

I swear you learn something knew everyday. So does the mag field ALWAYS go to the north if using the CURL rule??

was an accident i swear.. lol. I got the picture workin now.

CHECK THIS PICTURE OUT:

OR IS IT THE OPPOSITE DIRCTION IN THE RIGHT HAND CURL RULE!!!! WOW!! NEVER KNEW THAT!! cant believe its opposite --> Mind blown

why should thumb point upwards??? mag field direction goes from NORTH to SOUTH

mag field direction goes from NORTH to SOUTH though, so that's why you point your thumb to the south

anyone??

Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! I had an insight it was in the paper as well --> but need to find out if it was in MC or S/A...will get back to you later.

bump

In this question, shouldn't the current made in the coil generate a magnetic field such to oppose the magnet, hence the magnetic field in the coil will be down (as the bottom of the coil needs to be south to oppose the south end of the magnet). This means when i use the right hand curl rule...

Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! So increase intensity = more photoelectrons emitted Increase in frequency = greater KE of photoelectron which leaves.

idk i did cobalt-60 industrial radiography.

Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! what about e = hf - w?? and do i need to know explicitly what classical thought about frequency, intensity

Re: OFFICIAL PHYSICS HSC 2015 Prophecies!!!!! --> FROM A NOSTRADAMUS DESCENDANT!!!!!! Can anyone help the all holy Nostradamus out with Einstein vs Classical theory? what do i need to mention?