Aparallel-plate capacitor is made of two square plates 25 cm on a side and 1.0 mm apart. the capacitor is connected to a 50.0-v battery. with the battery still connected, the plates are pulled apart to a separation of 2.00 mm. what are the energies stored in the capacitor before and after the plates are pulled farther apart? why does the energy decrease even though work is done in separating the plates?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

Should we celebrate the voyages of zheng he mini q answer key