d. 8.8 × 10-8 N/C 8. A proton initially moves left to right along the x axis at
ID: 1874838 • Letter: D
Question
d. 8.8 × 10-8 N/C 8. A proton initially moves left to right along the x axis at a speed of 2.00 x 10 m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of o.200 m before coming to rest. What acceleration magnitude does the proton experience? a. 6.67 x 10' m/s b, 1.00 × 107 m/s2 c. 9.33 x 10° m/s d. 2.67 x 10"m/s o. 200m 9. Two charges, +Q and-Q, are located two meters apart and there is a point along the line that is equidistant from the two charges as indicated. Which vector best represents the direction of the electric field at that point? a. Vector EA b. Vector Es c. Vector Ec -Q d. The electric field at that poi behavior. 10.The electric field of a point charge has an inverse 1/2 a. r C. r d. r3 A charge, +Q, is placed inside a balloon and the balloon is inflated. As the radius of the balloon r increases the number of field lines going through the surface of the balloon: 11. a. increases proportional to?.Explanation / Answer
here,
8)
initial speed , u = 2 * 10^3 m/s
s = 0.2 m
let the accelration due to electric feild be a
using third equation of motion
v^2 - u^2 = 2 * a * s
0 - 2000^2 = 2 * a * 0.2
solving for a
a = 1 * 10^7 m/s^2
the accelration is b) 1 * 10^7 m/s^2
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