An object having a net charge of 30 µC is placed in a uniform electric field of 622 N/C directed vertically up. What is the mass of this object if it “floats" in the field? The acceleration due to gravity is 9.8 m/s². Answer in units of g.
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- Three charges are placed along the x-axis: q1 = 3.00 µC at X1 = -20.0 cm, q2 = -5.00 µC at x2 = 10.0 cm, and q3 = 6.00 µC at x3 = 25.00 cm. Determine the magnitude of the electric field at the origin. O 4 69x106 N/C O 2 96x106 N/C O 6 04x106 N/C O 4.31x106 N/CA charged cork ball of mass 2.50 g is suspended on a light string in the presence of a uniform electric field as shown in the figure below. When E = (2.00 î + 4.60 ĵ) ✕ 105 N/C, the ball is in equilibrium at ? = 37.0°. Find the charge on the ball. Find the tension in the string.What should be the direction and magnitude of the vertical electric field that will balance the weight of a plastic sphere with the charge Q= +1.5 nC and mass m= 1.8 g? 3.2 x 10^5 N/C positive y-direction 1.2 x 10^6 N/C in +y-direction 1.2 x 10^6 N/C in negative y-direction 3.2 x 10^5 N/C in negative y-direction
- A small plastic ball of mass 5.86 x 10-3 kg and charge +0.178 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the vertical. The area of each plate is 0.01293 m². What is the magnitude of the charge on each plate? Number p Units + + 30.0⁰ + TA TA T IA charged 3.60 g glass bead hangs suspended in the air by an electric field. If the bead was charged by the removal of 7.10×1010 electrons, what must the electric field magnitude be? 2.56×1011 N/C 3.11×106 N/C 4.97×10-13 N/C 3.17×108 N/CA small object of mass 3.54 g and charge −19.3 ?C is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude direction