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is this wat it means?

i just checked the dotpoint book and it says aluminium or copper-based saucepans will not work well as they have too low a resistance to generate the heat required. However does ferromagnetic material affect eddy currents in anyway? and how? (maybe it magnifies the effect, but how)

I don't undestand, why does one material coz the pot to fly off, but not the other? and i'm pretty sure the the higher the resistance the higher the heating.

why must the pot be a ferromagnetic materials such as Iron, but cannot be a material such as copper or aluminum. Eddy currents are produced in all conductors right? So why do only Iron (or Iron alloy) pans work? I get why glass pans don't work, thats because glass isn't a conductor.

You could interpret thats its weaker in this way: H2S04 -> H+ + HSO4- (very strong) HSO4- -> H+ + SO4(2-) (weak) thus overall it is a weaker then HCl (which is always 100%) Although i've been told that in the HSC we always consider the second step to be 100% as well, even though in reality...

apparently bicard soda can make soda water too. wiki it

soda water is. Water with CO2 and we all know CO2 makes carbonic acid with water :]

i hate to be a smart arse. but you're wrong. tha uai considers those that drop out at year 10. so technically they don't get a uai as a such, but they're still calculated in the ranking. So basically out of all those that do recieve a uai, the average is around 60

Mid 60s? Somewhere around there.

if i was the husband, i think i would want to know the truth.

super quick method: pH 1 = 90 mL of solution pH 2 = ?? pH 2 = 100x less concentration as pH 1 so pH2 solution must be 10x as dilute so volume must be 10x as much. as 900-90 = 810 mL must be added.

ouch i can't believe she said yes on the last question lulz.

yeah watch out for the people that will mislead you on purpose though. (like foram)

ow that was so harsh even i felt the burn

using xy = -1. for example. you know it'll reach infinity at x = 0 (or y = 0) But the thing about limits is, you need to approach it from both sides. So if you approach x =0 from the negative side. i.e. x = -negative infinity -> x = 0 then x will be negative for all values in this...

simply test a number close to zero (or infinity) so if x approaches 0 from the negative side (that is from the left) test like -0.01. -1 / -0.01 = 100 -1 / -0.0001 = 10,000 -1 / -0.0000001 = 10,000,000

here ya go. sorry about the file quality, forum is max 100 kb per pic

You know the rule (there are many) for determining the emf of a wire as it is moved? Just use that one, on the right side of the coil. (velocity downwards, magfield to the right) and you'll see that induced current is moving from N to M, which is connected to terminal B, thus terminal B is...

you must get 100% for all those subjects then.

scaling should be a factor in your decisions. Although just a part of it, not the whole thing.