According to kepler's law of harmonies, which of these planets takes the longest to orbit the sun?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Avoltaic cell converts chemical energy to

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=