a 1.95 kg female great horned owl silently swoops directly from a branch 12.4 m high in a tree to capture an unfortunate field mouse on the ground- a 24.0 m distance from the owl's perch. calculate the work done by gravity on the owl during its downward flight.

An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)