Find the net force on the moon due to the gravitational attraction of the earth and sun assuming right angles

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

Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).

Boiling water is an example of physical change. true or false