How many moles are there in
200.00 g Na?

State the following: boyle's law and charle's law

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.

How much work would it take to move a coulomb charge across a 4 volt potential difference?