Match the term to its definition.
term:
equator
seasons
tidal bulges
tides
definition:
a) the divisions of the year marked by specific weather patterns and daylight hours
b) two ocean bulges created on opposite sides of earth due to the moon's gravitational pull and ocean's resistance to the pull
c) the rise and fall of sea levels due to gravitational forces
d) an imaginary line drawn around earth dividing it into northern and southern hemispheres

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.