A central air conditioner has a power output of 3500 W. The air conditioner runs 5 hours/day for 115 days (May-September). How much will you have to pay if electrical energy costs $0.13/kWh? Please help me it's due in an hour I WILL GIVE YOU BRAINLIEST AND 5 STARS

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?