A6.0 kg object undergoes an acceleration of 2.0 m/s2 . a. what is the magnitude of the net external force acting on it? b. if this same force is applied to a 4.0 kg object, what acceleration is produced?

The plum pudding model of the atom states that ?

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Which statement best describes the direction of the buoyant force on any object? a. opposite the force of gravity b. in the same direction as the weight c. in the direction of motion of the object d. opposite the direction of motion of the object