- #1

mburt3

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## Homework Statement

An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1425 m/s when it enters a cylindrical tube of radius 0.700 m centered on the x-axis. Inside the tube is a uniform electric field of 5.00x10-4 N/C pointing in the negative y-direction. How far does the particle travel before hitting the tube wall? Neglect any gravitational forces. Note: mα = 6.64x10-27 kg; qα = 2e.

## Homework Equations

Eq=F

d(delta)y=v(int)yt + 1/2at^2

d(delta)x=v(int)xt

## The Attempt at a Solution

(5x10-4)(2)(1.6x10-19) = F = 1.6 x 10-22

F=ma

(1.6 x 10-22)/(6.67 x 10-27) = a = -2.41 x 10-4m/s^2

d(delta)y=v(int)yt + 1/2at^2

-.7= 0 + (.5)(-2.41 x 10-4)(t^2)

t= .007622s

d(delta)x=v(int)xt

d(x)= (1425)(.007622s)= 10.86 m

I'm not sure what I did wrong, but I checked my math twice so I guess it must be something with the process that I took. Please let me know if you can help! Thanks!