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Heyy How do u do question iii)? thanks :)

Hai so i was doing some revision and came across this question, and i dont really understand how do u do question b lol thanks :)

Sup, for this question, ive no idea how they got the net force and the direction of it... I've added vectors before using pythagoras and ive no idea how to apply it to this question D: Any help would be appreciated Thanks :)

So I was doing some revision on trig and I came across these questions that I've no idea how to do :/ Q14)b in the image below and Q19)b)c) Thanks :)

Sup, So for question 23, I found the ratio for the geometric progression, however it's an irrational number, and the answers had rational numbers in the sequence >.>. I checked my working, and have no idea what I did wrong D: Any help would be appreciated :D Thanks

Hey guys, Do I need to know cosmic engine module to understand HSC physics? Sorry if the question sounded dumb, it's cos im self studying physics and want to start the HSC course ASAP. Thanks :D

So for uniform electric field, can the arrows be starting from the negative then go to positive? Or the directions of the arrows dont really matter? Any help would be much appreciated Thanks :D

Sup, So for this one I'm wondering am I supposed to know how this is formed? Like if I only knew the reactants, should I also know the exact formula of the product? Thanks :D

So for this question can I say: Drop a line OC perpendicular to AB AF = CA - CF GB = CB - CG CA = CB (perpendicular from centre to chord bisects it) CF = CG (perpendicular from centre to chord bisects it) Therefore GB = AF I just want to make sure that its right >.> cos cambridge used a...

Sup guys, How do you minimise your careless mistakes? I make a crap load of them

Sup, So i got a question on moles for chem For question b) I did 0.037 times (40+32) and got 2.664, but the answer says its wrong - should be 5... So I guess my logic of approach to this question is wrong. Here's my logic: 1 mole of calcium = 40 grams 1 mole of sulfur = 32 grams If I...

I got a question on geometric progression: Evaluate the series 16 - 8 + 4 - 2 + ... +1/16 Okay, so I'm trying to find out how terms are there in this series using logarithm. I always have to input log of a negative number in the calculator because of the ratio being a negative number and it...

Hey guys, im a noob at english here so im just wondering what do the modules mean? what are they for? I thought we were supposed to write essays on belonging for HSC any halp wud be appreciated thanks :D

For question 12 (v) How do you find the domain and range for that graph? I don't even know how to draw that type of absolute value graph lol Any help would be appreciated Thanks :D

In question 4, why are the covalent bonds charged? I looked through prelim conquering chem and I cant find anything that talks about this. Can someone tell me what topic is that, so i can study it http://i.imgur.com/ytBTx.jpg Thanks :D

Why dont Silicon, Carbon, Boron and phosphorus form ions? Heres teh question: Heres da answer: Dunno why silicon, carbon, boron and phos dont form ions :/ Thanks :D

How do u do 2)f :( im such a noob at circle geo

Why is SO3 called sodium trioxide not sodium oxide. Why is (Al2)(O3) called aluminum oxide but not aluminum trioxide

Hai guys I got a question. A hand of five cards contains a ten, jack, queen, king and ace. From the hand, two cards are drawn in succession, the first card not being replaced before the second card is drawn. Find the probability that the ace is selected. I did: 1/5+1/4=9/20 but the answer...

Hello, this is my first time coming across this type of question :/ How do you do question 3A? Thanks :)