You leave a light on in your house for 10 minutes (600 seconds). the lightbulb draws 0.5 amps at 120 volts. what is the power rating of the lightbulb and how much energy is consumed in the 10 minutes?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

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?