Recent content by F|234K

thanks a lot.

"Hint: How does the period of a pendulum depend on its length?" taht the thing i don't no...so i can't do the Q...

for number one, are u suggesting taht i should use the linear equation instead of the volume one? linear equation being delta L=alpha(Lo)(delta T)

1.) a steel rod is 3 cm in diameter at 25 C. a brass ring has an interior diameter of 2.992 cm at 25 C. at what common temperture will the ring just slide into the rod? for this Q, i am not too sure which equation to use. i think it's the volume change one, which is delta V= beta(Vo)(delta T)...

ahhh...that clearified me...i think i get it...thanks a lot.

question: a composite bar of length L=L1+L2 is made from a bar of material 1 and length L1 attached to a bar of material 2 and length L2. show that the effective coefficient of linear thermal expansion is : alpha= (a1L1+a2L2)/L [- alpha/a=coefficient of linear thermal expansion] i...

thanks a lot seiferseph. how u figure the equation D=Vd/Va?...whats the physics behind it? or it's simply using the rule of ratio?

can anyone please give some idea......i am sure there are a lot of people who can help me...it's not that hard is it?

hold on...why the electron moves twice as fast, shouldn't it be squarroot(2) times as fast? equation used: 1/2mv^2=Vq=KE if V is doubled, and m and q is constant, then v should be squarroot(2) times as fast, isn't it?

no one has any idea?

dude, try to understand the physics before pluging in numbers into a meaningless equation...read the book first...

mozart you are right, the ones which have the highest reduction potential will get reduced, and the one that have the highest oxidation potential (or lowest reduction potential) will get oxidized. you should have a chart full of all the redox reactions to do this question. and i think your...

in a CRT, the deflection on the screen is 2.4 cm when the accelerating voltage is 480 V and the deflecting voltage is 36 V. what deflection on the screen will you see if the accelerating voltage is 960 V (doubled) and the deflecting voltage is 18 V (halfed)? answer is 0.6 cm can anyone...

i once asked a question very similar to this (and it's solved). look at the posts i made to find that problem. it might help a bit...

oh...i think i got it...thanks for this "If a vertex only has one other vertex leading into it--say the other vertex has 7 ways to get to it--then how many ways can you get to that second vertex?" again..thanks a lot!