An electron is accelerated from rest through a potential difference ΔV. If the electron reaches a speed of 7.820 × 106 m/s, what is the potential difference? Be sure to include the correct sign (does the electron move through an increase or a decrease in potential?)

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward