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ah i see... likely...

as long as you describe when they were discovered, where and how, i think it doesn't matter which elements you choose. i would be cautious about 'recent' though. don't know how recent they want the elements to be... (could be within the last decade, or even last century... :confused: )

yes, the extra kinetic energy does come from the planet, but i was querying physician as to whether it came from the gravitational potential energy possessed by the object because of the PLANET'S field or whether this "boost" came from the KINETIC ENERGY OF THE PLANET itself (which he mentioned...

i think the issue is describe recent discoveries of elements.. not how transuranic elements are made lol im confused over this dotpoint too...couldnt find any info

3 marks to explain a term lol... neway i thought that since the slingshot effect was a gravity-assisted manouevre (spelling!), the extra kinetic energy gained by the rocket would come from gravitational potential energy of the rocket being in the planet's field. are u sure about the energy...

but i thought ontogeny doesn't recapitulate phylogeny.. i.e. the development of an individual (ontogeny) does not retrace the stages through which the INDIVIDUAL SPECIES has passed during its evolution (phylogeny) so how can we say, "yes, hence they must have shared a common ancestor" i...

slingshot effect sorry but can i bring up another dotpoint in the same module? identify that a slingshot effect can be provided by planets for space probes. despite the keyword identify, do we still have to know more than just a statement. e.g. how it provides a slingshot effect, and other...

yes they couldn't detect the aether, which meant they couldn't prove it existed --> which meant what? they had to assume, as good scientists, that aether DID NOT exist. i second what velox said --> let's not entangle ourselves in semantics.

no change in the interference pattern when rotated through 90 degrees had to mean that there was no aether because if there was a change in the pattern: - that would have meant that the two light rays would have been exposed to DIFFERENT CONDITIONS on their path (cant think of another reason...

i.e. when they rotated the apparatus through 90 degrees rite?

Please Proofread: Aether Expt ok let me get this straight. pls correct me if im wrong: 1) they sent a light through a half-silvered mirror. they got an interference pattern of the two light rays. they noted the interference pattern and saw that the two incoming rays were OUT OF PHASE...

yes, i am having the same trouble, ESPECIALLY with biogeography and comparative embryology. just because they all have gill slits or a tail when they are young (or just because they all look alike at that stage), how does that support evolution? and as for biogeography, i'm stumped. :( :(

both i guess then... yay!

just wondering, why isnt P(loss) = v^2 / R

octane rating: petrol and air mixtures have to explode at exactly the correct moment in an internal combustion engine. if the wrong kind of fuel is used ignition of the mixture can ocur before it should. this leads to knowcking. the octane rating (or octane number) of a petrol is a measure of...

you managed to post just before me lol

RATE OF REACTION The rate (or speed) at which a reaction occurs depends on several factors: 1) temperature: the higher the temperature, the faster the reaction is bec ause the particles are moving with greater energies 2) particle size: the smaller the particles involved, the greater is...

fair enough. i see what u mean. btw, is there any way of finding out what the board of studies answer is for this particular idea of galileo's analysis. i would feel much more secure with something authentic (rather than different opinions from different sources: in jacaranda, all objects...

power loss in a transmission line = I^2 R that is why to minimise power loss we reduce current. but isn't power loss also given by the formula v^2/R (since V = IR). so by reducing current, we are increasing voltage, which we are ALSO supposed to reduce... there is a contradiction. i know...

lol...haha take your time... its everyone's job remember? (although i must say, u do a heck of a job HSC_sUcKsSsS)