x²y"(x)-3xy'(x)+3y(x)=2(x^4)(e^x)
=>y"(x)-(3/x)y'(x)+(3/x²)y(x)=2x²e^x
i don't know how to approach this problem because the coefficients are not constant and i am used to being given y1 and y2
HELP!
E1/E2=2.87
E1=kq1r/(r^2+r^2)^1.5
E2=kq2(2r)/(r^2+(d-r)^2)^1.5
thats the equations i have but i don't know how i would use them in order to get the ratio of q1/q2
Homework Statement
Figure 22-42 shows two parallel nonconducting rings with their central axes along a common line. Ring 1 has uniform charge q1 and radius R; ring 2 has uniform charge q2 and the same radius R. The rings are separated by a distance 3.00R. The ratio of the electric field...