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okai what did everyone choose for this question, I wasn't too sure what would relate to social and what would relate to ethical

I'm just wondering, for DC generators which runs on split-ring commutator, as the direction of the current changes every half cycle, this means the induced current will change polarity every half cycle right ?? also for AC generators, the polarity of the induced current remains constant as...

for the sorting question that said changed the array to 10000 values, which would be the most suitable sorting method ?? I chose insertion hmm, or maybe it should be selection

okai though public domain is a software which can be freely used and distributed, does copyright still remain with the rightful author ?? I read in one textbook it does and the other doesn't, I'm confused

have no idea what this question was about, what do we deduce from

okai simple question but the wording gets me confused XD, find the locus if its distance from the y-axis is three times the distance from the x-axis would this be 3y=x or y=3x also point p(x,y) is the locus of a point moves in such a way that its distance from a(3,1) is always twice its...

me ?? hopefully over 70 ahhhhhhh

hmm for trichlorofluromethane = CFC-11 how do I work that out ?? I read it before but forgotten

cellulose has a long chain carbon structure which give it the potential to replace petroleum as feedstocks for petrochemicals as each glucose monomer consist of 4 carbon atoms linked in a chain with -OH and -H functional groups do each glucose have 4 carbon atoms ?? or is the wording wrong...

okai abit confused, I get how strong acid and weak base forms a strong salt and things, and I know how to identify whether a acid is strong or weak, but how do I identify whether a base is strong or weak ?? I only know NaOH is a strong base, help thanks

okai radioisotopes can be created in both nuclear reactor and accelerator target nuclei bombarded with neutrons in reactor and small nucleus is accelerated to create with the target nuclei in acceleration, either these are ways to create radioisotopes what my question is asking is does...

hey anyone sleeping tonight ?? or going to study till early in the mornings, I'm planning to sleep early and have the energy to get up tomorrow

I was just studying the techniques that is used in different text types and even though I know what each are used for though I really can't seem to know the purpose for some of those techniques (ie. how they are effective in conveying eaning), if anyone could help that would be great thanks...

okai I didn't know how many related to prepare before and I actually prepared three, now that I found out that is two, what should I do ?? keep the third one ?? or take out the third one and expand on the other two ?? which would be more effective ?? thanks

Can anyone tell me the difference between Sacrificial Anodes and Galvanising, as far as I have read all I know is that besides the similar principle of making the protected iron as the cathode, gavanising has another protection when zinc is used which further protects the iron using it's passive...

could anyone help me with this question a dam contains 3 x 10^8 literes of H2O the H+ concentration is 2 x 10^-3 molL-1, if the acid is HCl,what mass of NaOH would you need to neutralise?

hey I'm almost finished my notes but I'm abit unsure about these dot points, if anyone could help that'll be great 1// Describe how Bohr’s postulates led to the development of a mathematical model to account for the existence of the hydrogen spectrum: (the mathmatical model was balmer's...

could anyone tell me at what depths does aerobic organisms begin to occur, also how can carbon dioxides concentration in seawater greater than atmosphere if the presence of phytoplankton photosynthsise and use up carbon dioxide, thanks

- A hub is a central connecting device in a network. Data arrives at the hub from one or more devices and is forwarded out using just one cable. - A hub is a central connecting device in a network. When a hub receives data from a node, it sends the data back out along all the cables (except...

okai just organising my notes and came across a few points which have raised questions, if someone could clear it up it'll be great thanks - since hertz didn't investigate the photoelectric effect, did he recognise the UV component which caused more electrons at the time?? - also was it...