A charged particle of mass m=1.314 g and charge q=1.078μC is moving in the xz− plane (unit vectors i and k ) under the a

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A charged particle of mass m=1.314 g and charge q=1.078μC is moving in the xz− plane (unit vectors i and k ) under the action of both Earth's gravity g=−gk and the electric field E=−Ei, where magnitude E=23.4kV/m. The particle started at position x0​=z0​=0 with the initial velocity v0​=v0​i, the initial speed being v0​=0.54 m/s. At some point later in time, the particle is found in a position with the z-coordinate z=−34.4 cm. What is the x-coordinate of this position?: x= cm. What is the speed v of the particle at this position?: v=m/s.