Un grúa cuyo rendimiento es del 50% está instalada a un motor cuyo rendimiento es del 80%. Si al motor se le proporciona una potencia de 800watt, calcular la velocidad constante con la cual podrá subir un bloque e masa 1kg (g = 10m/s2

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

force tends to be low and long diustance masses are high