In Addition to 1 M = 39

question 102

Multiple Choice

In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 1 mile = 5280 ft, 1 ft = 12 in, 1 hour = 60 min, and 1 min = 60 s. If a particle has a velocity of 8.4 miles per hour, its velocity, in m/s, is closest to

• A) 3.8 m/s.
• B) 3.0 m/s.
• C) 3.4 m/s.
• D) 4.1 m/s.
• E) 4.5 m/s.

---

Definitions:

Fossil Fuels

Natural fuels such as coal, oil, and natural gas formed from the decomposed remains of ancient plants and animals, used primarily for energy.

Hydrogen Fuel

A clean energy source that, when consumed in a fuel cell, produces only water as a byproduct, offering a potential alternative to fossil fuels.

Net Energy

The difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.

Ozone

A molecule made of three oxygen atoms, significant in the stratosphere where it protects life by absorbing harmful ultraviolet radiation.