Recent content by riken9

Isn't what I did with the 1st attempt correct, I just need to add angles and is the hypotense the magnetic field?

Opps I forgot to put the current in formula; but I assure you I used it. And can you explain mor about the point, can I pick a point outside the picture I provided, which is 5 cms away from each wire and forms 2 right angle triangles. Also which method should I be using the first one or the 2nd...

Homework Statement Heres the question: http://imgur.com/aFJFxLa Homework Equations B = μ0/2∏r The Attempt at a Solution μ0 = 4∏*10^-7 Magnetic field = μ0/2∏r + μ0/2∏r = μ0/2∏(0.05) + μ0/2∏(0.05) = 4*10^-5 The answer is 24*10^-6 T. I need...

Thank you so much! To think, the only reason my answers were wrong cause of my stupid mistakes. Might need to be be careful, and not rush these questions.

Heres what i am doing: q-p Ex = (9*10^9)(4*10^-9)/(0.80)^2 = 56.25 Q-p E1 = (9*10^9)(6*10^-9)/(1)^2 = 54 Ex = E1sin37 = 32.5 Ey = E1cos37 = 43.1 P p = SQRT((56.25)+(-32.5))^2+(43.1)^2) = 49.22 The 32.5 is negative because am thinking the - charge on Q makes the electric field go in ward, so...

I found the angle to be 37 degrees, now my answer is around 49 Nc; which is still not close 35 Nc. Any more tips of what might of gone wrong?

Why should they be *10^-9, sorry i was taught very poorly how to do these questions so i have limited knowledge on this topic.

Homework Statement Heres the probelm: http://imgur.com/TbzJxVa Homework Equations e = kq/r^2 The Attempt at a Solution q-p Ex = (9*10^9)(4)/(0.80)^2 = 5.625*10^10 Q-p E1 = (9*10^9)(6)/(1)^2 = 5.4*10^10 Ex = E1sin45 = -3.82*10^10 Ey = E1cos45 = 3.82*10^10 P p =...

for the first question rf = ri + vt + 1/2at^2, i did 15 = 0 + 9t - 2t^2 and got 2.25 seconds. I also tried 15 = 9j + [i - 2j]t^2 and got 1.27 seconds, which is also wrong. And for the second problem i tried that still couldn't get it right.

Homework Statement 1. At t = 0, a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (2.0i - 4.0j) m/s2. At the instant the x coordinate of the particle is 15 m, what is the speed of the particle? 2...