What subatomic particle is in constant movement around the nucleus forming a cloud like appearance​

Electron

Explanation:

Electrons are negatively charged particles. They travel in paths, called orbits, within the electron cloud surrounding the nucleus. Electrons are constantly moving.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

answerspecific gravity;