Subgrid models for radiative feedback (top panel) and mechanical feedback (bottom two panels). Top: Energy- and momentum-ejection rates as a function of accretion rates, including “log-form” models inferred from the slim disk (solid), and simple ones with constant ${ϵ}_{\mathrm{r}}\equiv L/({\dot{M}}_{\mathrm{BH}}{c}^2)$ (dashed). Bottom: Momentum-ejection rates for mechanical feedback with constant ${ϵ}_{\mathrm{w}}\equiv {\dot{E}}_{\mathrm{kin}}/({\dot{M}}_{\mathrm{BH}}{c}^2)$ (dashed), and the model in Hu et al. (2022) – though the released kinetic energy is almost constant ($E_{\mathrm{kin}}\approx 4\times {10}^{-4}{\dot{M}}_{\mathrm{Edd}}{c}^2$), the momentum-injection rate grows linearly ($\dot{p}\approx 0.03f_{\mathrm{Edd}}{\dot{M}}_{\mathrm{Edd}}c$) because of the variable mass-loading factor.