un tecnico mueve una lavadora para revisarla la masa de la lavadora es de 45 kg. el tecnico desplazo 2 m la lavadora y realizo UN trabajo de 350 j. ¿cual fue la fuerza que aplico el tecnico ?

A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.

What energy transformations occur each time the skateboarder rolls up the ramp?