help me solve: 1.Consider three point charges located at the corners of a right triangle as shown in Figure, where q1=q3= 5.00 C, q2 = - 2.00 C, and a = 0.100 m. Find the resultant force exerted on q3. what is F3x and F3y 2.Three point charges lie along the x axis as shown in the figure. the positive charge q1=15c is at x=2 m, the positive charge q2 =6 c is at the origin, and the net force acting on q3 is 0. What is the x coordinate of q3? x= 3.A test charge of + 1 3 C is at a point P where an external electric field due to other charges is directed to the right and has a magnitude of 4 10 ^6 N/C . If the test charge is replaced with a charge of - 3 C , what happens to the external electric field at P? 1. its unaffected.2.it reverses directions.3. changes in a way that cant be determined. 4.an electron enters the region of a uniform electric field as shown in figure with vi=3.00 * 10^6 m/s and e=200n/c. the horizontal length of the plates is l=0/100m.a.Find the acceleration of the electron while it is in the electric field. b.Assuming the electron enters the field at time t=0 find the time at which it leaves the field.c. Assuming the vertical position of the electron as it enters the field is yi=0,what is the vertical position when it leaves the field. 5.an insulating sphere of radius a has a uniform volume charge density p and carries a total positive charge Q.a. Write the equation for the electric field point outside the sphere. b. write the equation for