A0.20-kg mass is oscillating on a spring over a horizontal frictionless surface. when it is at a displacement of 2.6 cm for equilibrium it has a kinetic energy of 1.4 j and a spring potential energy of 2.2 j. what is the maximum speed of the mass during its oscillation?

The answer should be a.

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Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;