Select the correct answer from each drop-down menu. It is believed that Europa, one of Jupiter’s moons has an ocean beneath its surface. Based on how Earth’s oceans and atmosphere are believed to have formed, what can be said about Europa’s supposed ocean?
The arrival of
in the early days of Europa’s existence could have formed its ocean. It is likely that the water experienced
, similar to Earth. It is also possible that this water is retained beneath Europa’s surface and in its atmosphere due to Europa’s.

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

=force × distance a. work b. velocity c. pressure d. momentum