Asolid silver sphere of radius a = 2.5 cm has a net charge qin = - 3.0 mc. the sphere is surrounded by a concentric copper spherical shell of inner radius b = 6.0 cm and outer radius c = 9.0 cm. the shell has a net charge qout = +2.0 mc. a) what is the electric potential at the outer edge of the copper shell, given the potential at infinity is zero? b) what is the electric potential on the inner edge of the copper shell? c) what is the electric potential at the center of the silver sphere?

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?