Asingle conservative force fx = (6.0x − 12) n (x is in m) acts on a particle moving along the x axis. the potential energy associated with this force is assigned a value of +20 j at x = 0. what is the potential energy at x = 3.0 m?

The gravitational attraction between two objects will if one object acquires more mass .

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Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.