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A particle moves along the x-axis. It starts from rest at the point x = 1. Its acceleration is given by: acceleration = −4(x + 1/(x^3). Find its velocity when it is half-way from its starting point to the origin.

w=-1+√3 i show w is a root of z^3-8=0

For the locus of z: arg z = pie/3 |z| less/equal to 2 should the origine be included?

Explain why f(x)=x^2 − 4x + 5 does not have an inverse function. I couldn't remember how dod we do these kinda questions. Anyone has good method of drawin inverse functions? I always get mixed up of inverse sine and cosine when the question is reali complicated.

Compare the features of the wave model of light with the features of the particle model of light when the models are used to describe the reasons for differences between blue light and red light. thx~~~

ESL 8or9th/20ish (hate my trials..i failed soo hard):mad1: Physics 5th/20ish Maths ex1 5th/13 Maths ex2 4th/9 Chinese background 3rd or 4th/11 our skul rank is terrible...its like 170 maybe..... another question is.. i put my trial raw marks into MATRIX ATAR...

A dental inspector finds that about 20% of children of a certain area have tooth decay. What is he probability that out of 6 children examined, only the first, third and fifth will have tooth decay? ----------- this is a question from 'fitz' thanks!!!!

do u choose to keep the secret or tell the teacher? i reali dun wanna be bitchy at my friend, but its not fair.......sigh~

The time limiting for the listening part is 30 minutes. (15 min for listening,15min for answering questions.) Are you allowed to come back for your listening part after finishing your essay, if you don't have enough time to finish it at first? We had half yearly today, dunno why the teacher...

umm... Im lookin for a physics private tutor, i live in ashfield, i can go to ashfield library or burwood library to have my tutor lessons.. i did physics tutoring in james'an college before, its not bad, but i think private tutors are more helpful, so yeh..... any suggestion of private tutor...

top 10% or top 5% of the state?(only 4u)

I mean.... do u preview the topic before the class? or do exercises after class, which exercise is good? my teacher doesnt give us exercise.....- - im wondering if i should drop chem,coz i did bad in yrly. we have 2 classes, although i was the top in my class, i onli ranked around 10 in the...

umm... could anyone tell me what to write in the discussion please? Thanks!!!! like..our teacher doesnt teach anything..= =||| actually i have no idea abt the pratical stuffs.. sigh~~~~

if a+b+c=0,show that (2a-b)^3+(2b-c)^3+(2c+a)^3=3(2a-b)(2b-c)(2c-a) uumm...anyone can help me please? thanks thanks!!!