6. A 2 uF capacitor is charged to a potential difference of 20V and then isolated. When it is connected in parallel with
another capacitor that is initially uncharged, the common d. p
is 40V. What is the capacitance of the second capacitor?​

The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?