In the figure an electron is shot at an initial speed of vo = 3.23 x 106 m/s, at angle 80 = 39.2° from an x axis. It moves through a uniform electric field E=(5.33 N/C). A screen for detecting electrons is positioned parallel to the y axis, at distance x = 2.96 m. What is the y component of the electron's velocity (sign included) when the electron hits the screen? Number i E 4.² Units Detecting screen x

Inside a cathode ray tube, an electron is in the presence of a uniform electric field with a magnitude of 275 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)?                            m/s2 (b) The electron is initially at rest. What is its speed (in m/s) after 1.20 ✕ 10−8 s?                            m/s

An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1075 m/s when it enters a cylindrical tube of radius 0.800 cm centered on the x-axis. Inside the tube is a uniform electric field of 3.00  10-4 N/C pointing in the negative y-direction. How far does the particle travel before hitting the tube wall? Neglect any gravitational forces. Note: m? = 6.64  10-27 kg; q? = 2e. m

A proton is initially moving to the right when it enters a uniform electric field directed upwards. Which trajectory shown below will the proton follow? p V AX AY KE W AZ O trajectory Z trajectory W O trajectory Y O trajectory X

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A proton enters a region containing a uniform electric field of magnitude 1.02 x 104 N/C, as shown. The entrance velocity is 3.0 x 10° m/s at an angle of 60 degrees with respect to the x axis. At the entrance point, x = 0, and y = 0. y to 60 a) Sketch on the figure, the trajectory (path) of proton as it moves through the region containing the electric field. b) Calculate the acceleration of the proton. Hint: Neglect the effect of gravity. c) Find the time at which proton intersects with the x axis. d) Find the horizontal distance from the origin at the point when the proton crosses the x-axis. e) Find the maximum vertical height (above x axis) attained by the proton.

Answer A and B on the image below.

Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 320 N/C. (a). What is the magnitude of the acceleration of the electron (in m/s2)?   m/s2     ?? (b). The electron is initially at rest. What is its speed (in m/s) after 1.15 ✕ 10−8 s? m/s ?