# Physics

posted by Annoyingmous

Two charged particles initially are traveling in the positive x direction, each with the same speed v, and enter a non-zero magnetic field at the origin O. The magnetic field for x>0 is constant, uniform and points out of the page. In the magnetic field, their trajectories both curve in the same direction, but describe semi-circles with different radii. The radius R2 of the semi-circle traced out by particle 2 is bigger than the radius R1 of the semi-circle traced out by particle 1, and R2R1=7.09. Note that the drawing is not to scale, so the ratio of radii may not be represented accurately. Assume that the particles are sent through at different times so that they do not interact with each other.

(a) Assume that the two particles have the same mass m, but have different charges, q1 and q2. What is the ratio q2q1?

(b) How much energy did the particle with charge q2 gain traversing the region with magnetic field?

(c) Assume that instead of different charges as shown in the figure, the two particles have the same charge q, but have different mass m1 and m2. What is the ratio m2m1?

1. Phy

b) 0

2. Annoyingmous

thanks a lot phy. any idea about the rest/some others?

3. Phy

No, do you have any idea for others problems?

4. Phy

I got 4th problem

5. Anonymous

6. Phy

B=n*E_0/c

wavelength= 2*pi*c/(n*omega)

Direction -z and -y

7. Anonymous

Thanks Phy!

8. P

This wave is traveling through a medium whose index of refraction is 1.3.
E= 2.8 xsin(2*π/lamdaz + 1.19e16) t V/m
B =B_0sin(2*π/lamdaz + 1.19e16 t) Tesla

Please tel ans for this phy.

9. Anonymous

2, 3, 5, 7 ,8 pls Phy

10. Phy

No i didn't get them yet, I'll tell you when i get those, can u tell me the solutions of 1,4,6,9,10,11,12?

11. Phy

1.2133e-8
1.21845e-7

12. dd

E⃗ = 8.6 xˆsin(2πλz + 5.91e16 t) V/m
B⃗ = Bo⃗ sin(2πλz + 5.91e16 t) Tesla

o can you explain the formula what is n, c and omega?

13. robbo

a) q2/q1 = R1/R2
b) 0
c) R2/R1

14. Jack

Phy, do you have problem 8?

15. P

robbo ppls tell what are the formulas for which you have posted.

16. P

Phy thanks for the ans I have ans for Q3 a=0 and last part =0

17. robbo

P, just trust me and go for the answers with the solns provided. We barely have time, so let's get together and solve the other remaining questions.

18. robbo

Who's got the capacitor brush problem and the LC circuit???

19. Phy

Q3, 3rd and 4th

I=V/R

20. TA

Phy I think you are not quite right.

Any right answer for the transient

21. Anonymous

ans for Q3 2
V/R(1-e^-(R*t/L))
5
V/R*e^-(t/(R*C))

22. me

23. aristotle

Q7
look at the maxima peak and the location of the minimum. count off the peaks.
( ist maxima and minima.)

Anyone for the capacitor and sphere problem? Thnks.

24. P

Anonymous what is t in Q3 b

25. LittleJohn

Someone cant help me to resolve a) and c)for the original post Thanks

26. lrc

Answer for a) & c) Q10

27. WTH

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