The figure shows a system consisting of three charges, q1=5μC, q2=5 μC, and q3= -5 μC, at the vertices of anequilateral triangle of side d= 2.7 cm. A) Find the magnitude of the electric field at a point halfwaybetween the charges q1 and q2.
B) Is the magnitude of the electric field halfway between thecharges q2 and q3 greater than, less than, or the same as theelectric field found in part (a)? Explain.
C) Find the magnitude of the electric field at the pointspecified in part (b).

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If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants