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wording is really bad but i kinda get what u mean. the answer depends upon the distance between the cannon and (A) and the initial velocity of (B). Generally it is possible for (A) and (B) to collide if u keep on changing the distance and the initial velocity of (B) but for ur question u haven't...

basically everything comes down to concepts. though u might have spent double or triple the time compared to some so called smart guy but u don't necessarily have a better concept and understanding. this is due to the fact of how u study. doing 10hrs of questions a day basically gives u nothing...

lol if u had done the complex questions i've done then u probably (probably, since u might be much better than me.) wouldn't say it is an easy chapter at all. but most complex questions in hsc are pretty easy but some are hard (i think, coz i seriously don't remember which questions are past hsc...

i'm sure the relationship of e=mc^2 can be derived by applying law of conservation of energy and matter. i'm almost certain that Einstein generated the relationship e is proportional to m first as it is very easy to do when u consider mass defect and binding energy. then from experimental data...

i don't really know what ur teacher is on. the question is like retarded. but i would put something like the invention of satellites in order to recieve maximum data about landscape and the region where the opposition are placed and the invention of rockets to carry missiles and nukes since that...

lol the scientists at the time basically left it as its existence was not important as it basically had no effects to matter (its just like blank space and discussing something like that is stupid). and as youngminii had said, the experiment never proved aether didn't exist as only its...

well basically the purpose of the experiment is to prove the existence of aether. it was said to be the "Absolute frame of reference". because earth is said to be moving, the relative motion of earth and aether should generate wind similar to the wind u would feel when a car passes u at high...

well it actually depends on ur style of learning and how much ur willing to learn. some people would focus on the main concepts while others just like to remember the method of doing it. if complex was easy to u then either ur really good or u haven't touched hard questions. try terry lee's...

but meh the bos will probably mark this question soft, i bet, coz not many in the state can get it perfectly correct. (correct to some extent maybe but i'm guessing mostly bs and not answering the question)

and i don't really know what u guys are on about relating to newtonian physics and principle of relativity because that's not the question and to fully answer that question (relating to newtonian physics and principle of relativity) u need to talk about both general and special relativity which...

well basically principle of relativity states that all motion is relative, meaning that u can't state ur actual motion unless u got another external point and that u cannot tell upon whether ur at constant velocity or stationary in an inertial frame of reference. but however the motion itself is...

Not really the father of cosmonautics but the father of THEORETICAL astronautics. i'm sure lol coz i used some stuff from wiki and it said that. i had more than 10 points prepared just for him lol and around 8 for goddard and 5 for esnault.

o.0 wtf...i read the question SEVERAL times and from the wording of it i'm pretty sure all it's asking is change of the forms of energy. (i remember the question said specifically at the end not to put stepping up and down coz i was going to do it anyways but decided not to coz that basically...

if u put mechanical energy make sure u didn't put like kinetic or potential with it or else that definitely 1 mark gone coz mechanical energy is basically kinetic energy+electrical potential energy. and if u did put mechanical energy down it would look quite stupid coz ur basically saying...

i just did tv, heater, speaker because it is easy *TV-electrical potential energy->EMR(photon)+sound energy *heater-electrical potential energy->heat energy+small amount of EMR(photon) [pretty sure they won't deduct marks if u didn't put the EMR part coz ur not expected to know that but u can...

those iq tests are like highly inaccurate and pretty much waste of time...u can just do alot of those type of questions and of course u can receive high scores. plus the first website u put down is a total waste of time since there are only true and false. (atleast there should be 6 possible...

u can compare the abc and the actual chinese and i'm telling u tat abc is likely to have more hairs than a full chinese or some chinese who spend most of their time in australia as they are growing due the fact tat australia is a hotter climate and those hairs are basically used to produce sweat...

i would get an iphone if u enjoy playing around with ur phone most of the time and the features are pretty good. and if u really want to show off then get a porche phone (P'9521 or P'9522 if ur out of money (basically the same price as iphone)). basically u can get a P9522 for around $500...

ur working out is correct but i don't really know if ur first line is wrong or not

wait 1 question, in ur right hand side of the equation, is it + or - between (x^2)y and y^3?