If the Speed of Light Is 3 * 10⁵ Km/s

question 69

Multiple Choice

If the speed of light is 3 * 10⁵ km/s and 1 km = 0.62 mile, what is the speed of light in miles per hour (mph) ?

• A) 670 million mph
• B) 670 thousand mph
• C) 186 mph
• D) 186 thousand mph
• E) 3.2 billion mph

---

Definitions:

NADH

Nicotinamide adenine dinucleotide (NADH) serves as an electron carrier, playing a crucial role in cellular energy production during the process of oxidative phosphorylation.

Electron Transfer Phosphorylation

Process in which electron flow through electron transfer chains sets up a hydrogen ion gradient that drives ATP formation.

NADH

Nicotinamide adenine dinucleotide (NADH) is a coenzyme found in all living cells that is involved in redox reactions, carrying electrons from one reaction to another.

Oxygen

A chemical element (O) that is critical for life, forming about 21% of the Earth's atmosphere and required for cellular respiration in most organisms.