Plz help The energy diagram shows the changes in energy during a chemical reaction.
Which statement best describes the total energy change of the system?

The mini-refrigerator fire was most likely caused by what type of wiring?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.