A Proton Initially Moves Left to Right Long the X

question 10

Multiple Choice

A proton initially moves left to right long the x axis at a speed of 9.0 × 10³ m/s.It moves into an electric field,which points in the negative x direction,and travels a distance of 0.8 m before coming to rest.If the proton's mass and charge are 1.67 × 10−²⁷ kg and 1.60 × 10−¹⁹ C respectively,what is the magnitude of the electric field?​

• A)4.3E+1 N/C
• B)5.3E-2 N/C
• C)5.3E-1 N/C
• D)6.6E-1 N/C
• E)1.1E+0 N/C

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