Recent content by nothingatall

1) function [p,q] = maxEntry(A) % A is an m-by-n matrix. %p and q are indices with the property that |A(p,q)|>=|A(i,j)| % for all i and j that satisfy 1<=i<=m, 1<=j<=n. 2) function s = totalSum(A) % A is an m-by-n matrix % s is the sum of all the values in A complete them without...

Homework Statement calculate alpha using the intercept and the value of k.Homework Equations T= 2pi*(m+(alpha)mspring)/k)^1/2The Attempt at a Solution my intercept i found using EXCEL was .228 and k=5kg/s^2 which I'm pretty sure i did wrong. But i don't know how my intercept would have anything...

Homework Statement When resistors 1 and 2 are connected in series, the equivalent resistance is 14.7 Ω. When they are connected in parallel, the equivalent resistance is 2.56 Ω. What are (a) the smaller resistance and (b) the larger resistance of these two resistors? Homework Equations...

It does, i was just forgetting to multiply it by the factor of 10^-26 hehe. Thanks.

Homework Statement A proton and an electron form two corners of an equilateral triangle of side length 5.3 x 10-6 m. What is the magnitude of the net electric field these particles produce at the third corner? Homework Equations E=kQ/r^2 The Attempt at a Solution I drew a triangle...

Homework Statement A certain electric dipole is placed in a uniform electric field E of magnitude 20 N/C. Figure 22-59 gives the potential energy U of the dipole versus the angle θ between E and the dipole moment P. What is the magnitude of P? Homework Equations U=p(dot)E The...

Homework Statement Two particles are fixed to an x axis: particle 1 of charge -1.23 x 10-7 C is at the origin and particle 2 of charge +1.23 x 10-7 C is at x = 15.5 cm. Midway between the particles, what is the magnitude of the net electric field? Homework Equations E=kQ/r^2 and/ or...

Ah I just add a negative to my 1.52e-10! Thank you for your help!

I used 8.99e9 for k and my theta= 73.3.

For the y-comp the answer was 0 because they cancel out. However I just doubled 7.58e-11 and i got 1.52e-10 and its wrong... Oh wait magnitude means do the Sqrt(7.58e-11^2+0^2) right? Never mind its the same:(

Well i got 7.58e-11 using E=kqcos(theta)/r^2; r=5.22 m distance bewteen particle 1 and point P and the field set up by particle 1 and point P was 2.64e-10. Then the tutorial mentions adding individual vectors to get the net field but should the 7.58e-11 value be the one I double?

Homework Statement The figure shows two charged particles on an x axis: -q = -8.00 × 10-19 C at x = -1.50 m and q = 8.00 × 10-19 C at x = 1.50 m. What are the (a)x- and (b)y- components of the net electric field produced at point P at y = 5.00 m? Homework Equations...

I was practicing the example from the book and mistakenly used that value haha... Thanks!

I'm not sure but I'm afraid to try it on account of its my final attempt :(

Homework Statement A charged nonconducting rod, with a length of 3.00 m and a cross-sectional area of 5.37 cm2, lies along the positive side of an x-axis with one end at the origin. The volume charge density ρ is charge per unit volume in coulombs per cubic meter. How many excess electrons...