Each voyager spacecraft was accelerated toward escape speed from the sun by the gravitational force exerted by jupiter on the spacecraft. (a) is the gravitational force a conservative or a nonconservative force?

Explanation:

For the force to be conservative one, the condition is that the curl of the force must be zero. In other words, the work done by the force is path independent  or does not depend upon the path.

Gravitational force is a central force and it does not depend on the path followed.

heat the gas and measure the pressure