A particle having charge q-1.90µC and mass m-25.0g is connected to a string that is L-1.58m long and is tied to the pivot point P as shown in the figure. The paricle, string, and pivot point all lie on a horizontal table. The particle is released from rest when the string makes an angle 0- 47.0 with a uniform electric field of magnitude E-390V/m. Determine the speed of the particle, in m/s, when the string is perpendicular to the electric field (just before point a in the figure). m
A particle having charge q-1.90µC and mass m-25.0g is connected to a string that is L-1.58m long and is tied to the pivot point P as shown in the figure. The paricle, string, and pivot point all lie on a horizontal table. The particle is released from rest when the string makes an angle 0- 47.0 with a uniform electric field of magnitude E-390V/m. Determine the speed of the particle, in m/s, when the string is perpendicular to the electric field (just before point a in the figure). m
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