Two small balls, each of mass 5.6 g, are attached to silk threads 49 cm long, which are in turn tied to the same point on the ceiling, as shown below. When the balls are given the same charge Q, the threads hang at 5.0° to the vertical, as shown below. What is the magnitude of Q (in C)? с 5.0⁰ What are the signs of the two charges? The ball on the left has a negative charge while the ball on the right has a positive charge. O The charges can be positive or negative, but both have to be the same sign. O The ball on the left has a positive charge while the ball on the right has a negative charge. O The signs of the charges do not matter.

Two small balls, each of mass 3.0 g, are attached to silk threads 30 cm long, which are in turn tied to the same point on the ceiling, as shown in the figure. When the balls are given the same charge Q, the threads hang at 0 = 3.0° to the vertical. What is the magnitude of Q?

Two identical point charges (q= +2.20 x 106 C) are fixed at opposite corners of a square whose sides have a length of 0.450 m. A test charge (qo = -3.10 x 108 C), with a mass of 9.40 x 10-8 kg, is released from rest at one of the corners of the square. Determine the speed of the test charge when it reaches the center of the square. Number i Units VR ·90

Three charges are located as shown in the figure, with values q; = 4.8 × 10-16 C, q2 = -1.6 × 10-16 C, q3 = 5.5 × 10-16 C. The charges are separated by d, = 3.2 x 106 m and dɔ = 3.8 × 106 m. d, (a) What is the force of q2 on q j in the x direction, F,? Give your answer in newtons, and recall k = 8.988 x 10° N m²/C². (b) What is the force of q3 on q, in the y direction, F,? Give your answer in newtons.