$\text { A buoy oscillates in simple harmonic motion } y = A \cos \text { at as waves move past }$

question 50

Multiple Choice

$\text { A buoy oscillates in simple harmonic motion } y = A \cos \text { at as waves move past }$ it. The buoy moves a total of $3.5$ feet (vertically) between its low point and its high point. It returns to its high point every 14 seconds. Write an equation describing the motion of the buoy if it is at its high point at $t = 0$ .

• A) \(y = 3.5 \cos \frac { \pi } { 7 } t\)
• B) \(y = 1.75 \cos 7 \pi t\)
• C) \(y = 1.75 \cos \frac { \pi } { 14 } t\)
• D) \(y = 1.75 \cos \frac { \pi } { 7 } t\)
• E) \(y = 3.5 \cos 14 \pi t\)

---

Definitions:

Anaerobic Process

A metabolic process that occurs in the absence of oxygen, used by certain organisms to generate energy.

Electron Transport Chain

A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, coupled with the transfer of protons across a membrane, to create a proton gradient that drives ATP synthesis.

Citric Acid Cycle

The citric acid cycle, also known as the Krebs cycle or TCA cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins into carbon dioxide.

Acetyl CoA

A molecule that plays a key role in metabolism, linking glycolysis and beta-oxidation to the citric acid cycle; essential for the production of energy from food.