Answer Happy

Question 28 In the figure Q = 5.8 nC and all other quantities are accurate to 2 significant figures. What is the magnitude of the force on the charge Q? (k = 1/4TEO = 8.99 x 109 Nm²/C²) 2 C 1 cm. 60 60 1 cm cm 2nC 2 pts 1.0 × 10-3 N none of the given choices 1.8 * 103 N 1.2 × 10-3 N x O 9.0 × 104 N
Question 27 A small sphere with a mass of 441 g is moving upward along the vertical +y-axis when it encounters an electric field of 5.00 N/C 2. If, due to this field, the sphere suddenly acquires a horizontal acceleration of 13.0 m/s2, what is the charge that it carries? -1150 C O 1150 C 1.15 C -1.15 C O none of the given choices 2 pts