Aphoton ionizes a hydrogen atom from the ground state. the liberated electron 11. recombines with a proton into the first excited state, emitting a 466 a photon. find a) the energy of the free electron, and b) the energy of the original photon

Natural forces that can alter ecosystems include seasons and climate changes. t or f

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)

Where should a carbon monoxide detector be mounted?