What kind of energy does a car possess when it is raised on a lift?​

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Explain what happens at the saturation point when adding salt to water at room temperature.