An air-filled parallel-plate capacitor has round plates and carriesa fixed amount of equal but opposite charge on its plates. All thegeometric parameters of the capacitor (plate diameter and plateseparation) are now doubled.
if the original energy density between theplates was u0, the new energy density is:

a. 16u0
b. u0/4
c. u0
d. u0/16
e. 4u0

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.

In a system, when potential energy decreases, then entropy also decreases. true false

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?