Recent advances in technology have allowed researchers to use nanoparticles to make the first measurements of electric fields inside cells. The field strengths are surprisingly large. In one type of cell, the electric field strength just outside the nucleus is approximately 47 kV/m. We can model the nucleus as an 8-um-diameter sphere and assume that positive charges are uniformly distributed on its surface. Part A What is the charge on the nucleus? Express your answer with the appropriate units. xa μÅ Xp . QWO 41 X X-10n DWO

Recent advances in technology have allowed researchers to use nanoparticles to make the first measurements of electric fields inside cells. The field strengths are surprisingly large. In one type of cell, the electric field strength just outside the nucleus is approximately 47 kV/m. We can model the nucleus as an 8-um-diameter sphere and assume that positive charges are uniformly distributed on its surface. Part A What is the charge on the nucleus? Express your answer with the appropriate units. xa μÅ Xp . QWO 41 X X-10n DWO