Recent content by DarkNess_wtc

however, the natural length is not given. they might not be the same

how can you know they having the same length and all do it by x cm.

know

i think the answer is in terms of l,k1,k2,k3 and theta

that's all the information given. I just don't know how the use the l

a mass is held by 3 extensible strings with spring constant k1,k2 and k3 respectively. Now, the string in the middle is having a length of l that's all the info. given find the tension of the 3 strings please help! http://imageshack.us/photo/my-images/821/helptd.jpg...

【questions】ionic & covalent compound Hello, i have some questions about ionic & covalent compound, please help 1. is molecule include ionic compound or only covalent compound? 2. will boiling broke the ionic / covalent bond? 3. suppose there are 3 atoms,1 sodium and 2 oxygen, then the...

i know triple point is the temp. that water's(here use water as example) solid、liquid、gas state can be existent . http://www.youtube.com/watch?v=BLRqpJN9zeA the video is amazing and so, how can he change water's state? (solid、liquid、gas state can be existent　at the same time, but how can we...

today's biology lession our teacher about cancer he said that if we travell somewhere by aeroplane, it's equal to take X-way 3 times i don't understand why we have radiation through traveling by aeroplane can someone explain to me, please thank you so　much

thank you

can you please state some liquid which is a good heat conductor (which have low specific heat capacity)

i can't understand S_n = \sum_{i=1}^n \frac{1}{\sqrt{i}}\approx 2\sqrt{n} +\frac{1}{2\sqrt{n}} - \frac{1}{24n\sqrt{n}} - \frac{35}{24} can you explain it please?

>that is 2(19-1) = 36 HOW come to this step?

... i want solving it without cal

how about steps?