Mass driver constrained by a limited amount of onboard spacecraft power. Thrust and momentum from exhaust, per unit mass expelled, scales up linearly with its velocity (momentum = mv), yet kinetic energy and energy input requirements scale up faster with velocity squared (kinetic energy = mv). Too low exhaust velocity would excessively increase propellant mass needed under the rocket equation, with too high a fraction of energy going into accelerating propellant not used yet. Higher exhaust velocity has both benefit and tradeoff, increasing propellant usage efficiency (more momentum per unit mass of propellant expelled) but decreasing thrust and the current rate of
Mercy Multiplied Henry Cloud and John Townsend and "The Battlefield of the Mind" by Joyce Meyer. In addition to individual and group counseling, other aspects of the Mercy Multiplied program include praise and worship, bible reading, listening to sermons and Christian teachings (both during scheduled class times as well as for prescribed counseling homework), cooking, cleaning and recreational time. During class time, residents are taught from preachers such as Beth Moore, Priscilla Shirer, Jordan Rubin, Joyce Meyer, Andy Stanley, Louie Giglio and Dave Ramsey. The Mercy Multiplied website states that they also facilitate "life-skills training", "nutritional care" and "financial management instruction". Since