If the force of gravity changes, what happens to the weight of an object?

An object's buoyant force and weight mean the same thing.a. trueb. false

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap