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A 70.0-g object connected to a spring with a force constant of 30.0 N/m oscillates with...

A 70.0-g object connected to a spring with a force constant of 30.0 N/m oscillates with an amplitude of 8.00 cm on a frictionless, horizontal surface.

(a) Find the total energy of the system.
Answer- mJ

(b) Find the speed of the object when its position is 1.30 cm. (Let 0 cm be the position of equilibrium.)

Answer- m/s

(c) Find the kinetic energy when its position is 3.00 cm.
Answer- mJ

(d) Find the potential energy when its position is 3.00 cm.
Answer-    mJ

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