The cellular determinants of K+ secretion in the principal cell include the intracellular K+ concentration, the luminal K+ concentration, the potential (voltage) difference across the luminal membrane, and the permeability of the luminal membrane for K+.
The average cost for a brake pad replacement, resurface rotors is between $254 to $361. Labor costs are estimated between $182 to $231 while parts are priced between $72 to $130.
1 For work on front and back brakes, CostHelper readers reported paying $273-$1,025 for an average of $567 at standard repair shops, or $280-$935 for an average of $578 at dealerships.rake rotors/discs (the part the pads rub against to stop the vehicle) may last through two or three sets of pads before needing to be replaced; slightly scratched rotors can sometimes be resurfaced (shaving off enough metal to make them smooth again).