What Emma pushes a bag with a force of 27 Newton's the coefficient of Connecticut friction between the bag and the floor is 0.23 what is the normal force acting on the bag by the floor

b.have there own function.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.