Mapa sapling learning ucleus of the boron-11 isotope consists of five protons an

Question

Mapa sapling learning ucleus of the boron-11 isotope consists of five protons and six neutrons. A particular ionized atom of oron-11, whose mass is 1.83 x1026 kg, lacks 3 electrons from its neutral state. Find the magnitude and direction of the electric field that will levitate this ion, exactly balancing its weight. Take g direction of the electric field that will levitate this ion, exactly balancing its weight. Take g- 9.81 m/s 9.81 m/s2 Magnitude: Number N/ C Direction: Cannot be determined O Downward O Horizontal O Upward

Explanation / Answer

Weight F 11 * 1.672e-27kg * 9.81m/s² = 1.80e-25 N

electrostatic force F = qE,

so

E = F / q = 1.80e-25N / (3 * 1.602e-19C)

= 3.75e-7 N/C

Direction =

and this field must point "upward"

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