An electron is trapped in an infinite square-well potential of width 0.4 nm. if the electron is initially in the n = 4 state, what are the various photon energies that can be emitted as the electron jumps to the ground state? (list in descending order of energy. enter 0 in any remaining unused boxes.)answers are, but cannot solve to ithighest: 35.3 ev28.2 ev18.8 ev16.5 ev11.8 evlowest: 7.06 ev

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?