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

Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons