2.2 Use the following information about three energy syste…
2.2 Use the following information about three energy systems to answer the questions: Incandescent light bulb: Electrical energy input: 100J Light energy output: 10J Heat energy output: 90J Energy saving light bulb: Electrical energy input: 20J Light energy output: 10J Heat energy output: 10J Hair dryer: Electrical energy input: 500J Kinetic energy output (fan): 110J Heat energy output: 350J Sound energy output: 40J