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6 Oct 2020
A physics lab instructor is working on a new demonstration. She attaches two identical iron spheres with mass m = 0.220 g to strings of length L as shown in the figure. Both spheres have the same charge of 7.60 nC, and are in static equilibrium when θ = 4.50°.
(a) What is L (in m)? Assume the strings are massless.
(b) The charge on both spheres is increased until each string makes an angle of θ = 9.00° with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case?
A physics lab instructor is working on a new demonstration. She attaches two identical iron spheres with mass m = 0.220 g to strings of length L as shown in the figure. Both spheres have the same charge of 7.60 nC, and are in static equilibrium when θ = 4.50°.
(a) What is L (in m)? Assume the strings are massless.
(b) The charge on both spheres is increased until each string makes an angle of θ = 9.00° with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case?
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Amal JeevaLv10
8 Mar 2021
