An electron is trapped in an infinite square-well potential of width 0.70 nm. if the electron is initially in the n=4state, what are the various photon energies that can be emitted as the electrons jump to the ground state?

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?