# Working on a study guide for my physics class and i am kinda lost on this...

###### Question:

Working on a study guide for my physics class and i am kinda lost on this one, I know we need to use the wext formula. Please write everything out and show conversions.
11:10 PM Sat Sep 28 224%D hartnell instructure.com Page < 3 > Of 4 0 - ZOOM + 4. (8 pts) A proton's speed as it passes point A is 6.00x 104 m/s. It follows the trajectory shown in the figure. What is the proton's speed at point B? The mass of the proton is 1.67x10-27 kg and the charge of the proton is 1.60x10-19 C. 30 V 10 V -10 V 5. (8 pts) 40.0 pJ of energy is stored in a 1.50 cm 1.50 cm 1.50 cm region of uniform electric field. (p = 10-12). What is the electric field strength? You do not need to draw a diagram.

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