<u>The Weight </u>is a vector whose magnitude is the product of the mass m of the object and the magnitude of the local gravitational acceleration. Its always directed toward the center of the Earth.
We use only one variable at a time to find the accurate result. We want to see how the result of experiment changes everytime with a single variable.
So the mass of water remains the same when it freezes. The mass of any substance is the same when it changes phase from liquid to gas, or solid. This is the principle of mass conservation.
This is false because an object can also be pushed by force and isn't always have to be pulled by a force.
What exactly do u want me to do for u mam/sir