The plates of a spherical capacitor have radii 6.25 cm and 15.0 crn. the space between the two spheres is filled with a material with dielectric constant of 4.8 calculate the capacitance. put your answer in the form of .abc x 100). f?

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%)