D) A 320 kg satellite is in orbit around the Earth 16000 km above the Earth's surface. Calculate the gravitationalfield strength
(0
)
When in orbit.

(ii)
When it is on the Earth's surface, before being launched.​

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=