A charge 5.00 nC is placed at the origin of an xy-coordinate system, and a charge -1.96 nC is placed on the positive x-axis at x = 3.99 cm . A third particle, of charge 5.96 nC is now placed at the point x = 3.99 cm , y = 3.03 cm . A)Find the x-component of the total force exerted on the third charge by the other two.
B)Find the y-component of the total force exerted on the third charge by the other two.
C)Find the magnitude of the total force acting on the third charge.
D)Find the direction of the total force acting on the third charge.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.