Q. A dog pulls on a pillow with a force of 39 N at an angle of 52° above the horizontal. Find the x and y components of this force.
Q. Two particles are fixed on an x axis. Particle 1 of charge q1=2.3x10-8 C at x=20.0 cm and particle 2 of charge q2= -4.50q1 at x=70 cm. At what coordinate (i.e., x value) on the axis is the net electric field produced by the particles equal to zero?