Which statement best explains the backward motion of the boat as the person moves forward

a: every mass exert a force on every other mass
b: an object at rest tends to stay at rest
c: friction opposes the motion of an object
d: for every action there is an equal and opposite reaction

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization. a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution. part bcalculate the percent ionization of ha in a 0.010 m solution