A Spring with Spring Constant K Is Suspended from the Ceiling.When

question 1

Multiple Choice

A spring with spring constant k is suspended from the ceiling.When a mass of M kg is attached to the spring,it stretches d₁ m.The mass is then pulled down an additional d₂ m and let go.Which one of the following statements about the resulting motion is true?

• A)The maximum kinetic energy is (1/2)kd₁.
• B)The maximum kinetic energy is (1/2)kd₁².
• C)The maximum kinetic energy is (1/2)kd₂.
• D)The maximum kinetic energy is (1/2)kd₂².
• E)The maximum kinetic energy is -kd₂.

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Definitions:

Oxidative Decarboxylation

A metabolic process in which a carboxyl group is removed from a molecule as CO2, typically coupled with the reduction of NAD+ to NADH.

Pyruvates

The ionized form of pyruvic acid, a key intermediate in several metabolic pathways, including glycolysis.

Acetyl CoA

A molecule that plays a key role in metabolism, serving as a substrate for the Krebs cycle and fatty acid synthesis; it links glycolysis and pyruvate oxidation with the citric acid cycle.

Phosphorylation Reactions

Chemical reactions in which a phosphate group is added to a molecule, such as a protein, altering its function.