*science*50 points to whoever’s right (it’s not a scam I’ll make a different post with 50 points if your right) What are the energy requirements for analog and digital signals.?

the areas around the equator

multiplying and dividing the two decimals and the eqations by the same number of the overalls

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.