# Physics

posted by .

An electron with a horizontal speed of 4.0 * 10^6 m/s and no vertical component of velocity passes through two horizontal parallel plates. The magnitude of the electric field between the plates is 150 n/c the plates are 6.0 long
A) calculate the vertical component of the electron's final velocity. (Ans 4.0 * 10^5)
B) calculate the final velocity of the electron. (Ana4.0 * 10^6)

• Physics -

v(x)=4•10⁶ m/s,
E=150 N/C
L= 6 (????)
t= L/v(x)

F=eE,
F=ma,
ma=eE
a=eE/m
where e = 1.6•10⁻¹⁹ C,
m=9.1•10⁻³¹ kg,
v(y)=at =...

v=sqrt{v(x) ²+v(y) ²} =…

## Similar Questions

1. ### Physics Electrical help thanks

Thank you ! At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j. …
2. ### physics

A. A uniform, upward-pointing electric field E of magnitude 3.00~103 N/C has been set up between two horizontal plates by charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation …
3. ### physics

An electron in a computer monitor enters midway between two parallel oppositely charged plates. The initial speed of the electron is 6.15 x 10^7 m/s and its vertical deflection is 4.70 mm. (a) What is the magnitude of the electric …
4. ### physics help!

An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal …
5. ### help help physics

An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal …
6. ### physics

An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal …