A metal sphere with radius ra is supported on an insulating stand at the center of a hollow, metal, spherical shell with radius rb. There is charge +qon the inner sphere and charge −q on the outer spherical shell. Take V to be zero when r is infinite. Part G. Suppose the charge on the outer sphere is not −q but a negative charge of different magnitude, say −Q. Find the potential of the inner sphere with respect to the outer. Express your answer in terms of the given quantities and appropriate constants. V_{ab} = ?Part H. Suppose the charge on the outer sphere is not −q but a negative charge of different magnitude, say −Q. Find the electric field at any point between the spheres (rarb. Express your answer in terms of the given quantities and appropriate constants. E = ?

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts.ki k i = nothing ev request answerprovide feedback

What are the three ways that an object can accelerate