In this perspective view of the solar system, the sizes of the planets are relative to the sizes of their orbits.

Why is alchemy not considered to be a science ?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

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