Un ciclo mixto ideal, el volumen del aire al comenzó del proceso de compresión es 0.228 m3 siendo su presión de 1 bar y su temperatura de 24C. la relación de compresión es de 11. La temperatura después de la combustión a volumen constante es de 994C. El calor comunicado a presión constante es de 50 Kj. Determinar: a. El calor total comunicado al ciclo b. El calor cedido c. El trabajo producido d. El rendimiento térmico e. La potencia del motor que al operar 1 segundo

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear