Is a state of maintaining a stable internal environment despite changing internal conditions

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio