Answer 1 . There are two protons one at the origin and the other at x= 3 cm. Wha

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1 . There are two protons one at the origin and the other at x= 3 cm. What is the electric field (magnitude and direction) at x=1 cm? 2. The electric potential inside a 15 m long linear particle accelerator is given by: V= 4000 - 6x^2 Where x is in m measured from the left plate located at x=0 (the right plate is at x=15). a) What is the electric field as a function of x? b) A dust particle whose mass is 0.2 grams has a charge of 1.5 microC lands at a point x=2 m. along the tube. What will its initial acceleration be? 3. A 600 ohm and a 200 Ohm resistor are in series with a capacitor and a 12 volt battery and a switch. One second after you close the switch, the voltage across the 200 Ohm resistor is 1.7 volts. What is the value of the capacitor?

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K = 1/4?eo = 9*10^9

P1 =P2= P charge on proton = 1.602 *10^-19 C

r1 = 10^-2 m

r2 = 2 *10^-2 m

E = E1

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