A sphere has a surface area of 0.42 m^2 and a uniform surface charge density of 6.7 μC/m^2 . A -6.1-μC point charge is 0.75 m from the center of the sphere. k=8.99×109N⋅m^2/C^2. What is the magnitude of the force between the sphere and the charge?

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Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !