Recent content by omer10000

Alright so I say that since 1/n in DIvergent and 1/n^2 is CONvergent, the sigma sigma overall is DIvergent? Not sure, 1/n^1.5?

How should I go about determining which 'in between' fraction is convergent? Do I use trial and error, and then solve it geometrically? Okay thanks for that so when I solve, I can just say that all values are positive for n≥1 and leave it to that. Then I solve without considering n=0. I...

Hello everyone, I need some help on doing convergence tests (comparisons I believe) on some Ʃ sums. I have three, they are: 1. Ʃ [ln(n)/n^2] from n=1 to ∞. I tried the integral test but was solved to be invalid (that is, cannot divide by infinity). Therefore I believe it to be a...

Homework Statement A vector in lR 3 (basis) has vector space V with the standard inner product. I need to find a vector in V which is perpendicular to both vectors v_1 = (1,2,1)^T and v_1 = (2,1,0)^T Homework Equations There is no real important equations other than just using...

Alright Doc al, it seems that what we started with is what we ended with, albeit now it's much more pellucid (clear - nice word right!). To summarize what has happened in this thread: 1) Part A and Part B triplet information was rearranged and caused a misunderstanding in the interpretation of...

You are right; A B C refer to the triplets. I have calculated the answers using Δt' equation and have found the answer to be such but this question has already been asked (http://au.answers.yahoo.com/question/index?qid=20100914220049AAG5sHf) and propose different answers. For ease, I copy and...

They are just arranged in a different manner. Since I answered with their abbreviations (ie. A, B, C), it makes sense that I organize it in such a manner. Therefore: A- T= 20 years, v=0.4 B- T= 10 years, v=0.8 C- T= 10 years, v=0.4 Part A = A B C but answer maybe B A C Part B = A B C but...

It is odd that the answer is uniformly fitting the given options; ie. A B C options are answered CORRECTLY as A B C I knew the answer to this but just wanted to double check for certainty. Thanks

Q1. Time Dilation Question Homework Statement Three identical triplets leave Earth when they reach the age of 21, in the year 2121. Each triplet goes on a spaceship journey that takes T years, as measured by a clock in each spaceship. During the journey they travel at a constant speed v, as...

Mistake has been found, since ω is in rad/s, t needs to be in s, ∴ V=V.*cos(ωt) 0=V.*cos(0.0785*20) 0=V.*0.00 0=0 ..so it was really an error in calculating and not method. Therefore C=5.404Farads. Thank you

Alright I got it. V=V.*cos(ωt) 0=V.cos(0.0785rad/s * 20s) 0=V.*0.001=V.*0 0=0 Thanks for the help gneill, I suppose the above therefore is correct. Answering the main question of this thread; Capacitance = 5.404 Farads Thank you

Hi, I checked by calculating cos in radians and degrees but both equal a figure close to one but i need it to equal zero. Thank you

1. Homework Statement Calculate capacitance of LC Circuit where: Inductor - 30H Capacitance voltage fully charged goes to zero in 20 seconds 2. Homework Equations Main Eq: V=V. *cost(ωt) where V is final Voltage, V. = Voltage initial, ω = resonant angular frequency ω = 1/√(LC)...

Homework Statement Calculate capacitance of LC Circuit where: Inductor - 30H Capacitance voltage fully charged goes to zero in 20 seconds Homework Equations Main Eq: V=V. *cost(ωt) where V is final Voltage, V. = Voltage initial, ω = resonant angular frequency ω = 1/√(LC) = 2∏f f. =...