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?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

The softest and hardest minerals are: softest hardest