Q1. A charge of -2.55 nC and a charge of -5.25 nC are separated by a distance of 40.0 cm. Find the position at which a third charge of +7.90 nC can be placed so that the net electrostatic force on it is zero.
Q2.A 83 kg circus performer jumps from a 5.1 m height onto a trampoline and stretches it downward 0.30 m. suppose that the trampoline obeys Hooke's law.
(a) How far will it stretch if the performer jumps from a height of 8.5 m?
(b) How far would trampoline stretch if the performer stands still on it while taking a bow?