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A mass of m = 4 kg is attached to a massless spring of spring constant k = 500 N/m compressed by d = 0.3 m as shown in the figure at right. This spring-mass system is on a table such that the potential energy of the spring is equal to the gravitational potential energy of the mass measured relative to the Ug = 0 reference level shown in the figure. The y coordinate (h) of the mass is: A). 0.3 m B). 0.6 m C). 1.2 m D). 0.9 m

A mass of m = 4 kg is attached to a massless spring of spring constant k = 500 N/m compressed by d = 0.3 m as shown in the figure at right. This spring-mass system is on a table such that the potential energy of the spring is equal to the gravitational potential energy of the mass measured relative to the Ug = 0 reference level shown in the figure. The y coordinate (h) of the mass is: A). 0.3 m B). 0.6 m C). 1.2 m D). 0.9 m

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25). A mass of m = 4 k g is attached to a massless spring of spring constant k = 500 N / m compressed by d = 0.3 m as shown in the figure at right. This spring-mass system is on a table such that the potential energy of the spring is equal to the gravitational potential energy of the mass measured relative to the U g = 0 reference level shown in the figure. The y coordinate ( h ) of the mass is: A). 0.3 m B). 0.6 m C). 1.2 m D). 0.9 m

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