Water vapor enters an adiabatic nozzle operating horizontally and at steady state. The water enters with velocity of 200 [m/s] and specific enthalpy of 3394.2 [kJ/kg]; it exits with specific enthalpy of 3000 [kJ/kg]. The exit velocity is most nearly

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

How does an observation about an object differ from an inference about that object