A Pilot Sets Out from an Airport and Heads in the Direction

question 79

Multiple Choice

A pilot sets out from an airport and heads in the direction N $30 ^ { \circ }$ W, flying at a constantspeed of $305$ mi/h. Forty-five minutes later the pilot makes a course and speed correction and now heads in the direction N $50 ^ { \circ }$ W and reduces her speed to $175$ mi/h. Half an hour later, engine trouble forces her to make an emergency landing. Find the distance between the airport and the final landing point

• A) \(423.8 \mathrm { mi }\)
• B) \(408.8 \mathrm { mi }\)
• C) \(309 \mathrm { mi }\)
• D) \(216.41 \mathrm { mi }\)
• E) \(312.41 \mathrm { mi }\)

---

Definitions:

Monomer Units

Individual, small molecules that can bind chemically to other monomers to form polymers through repeated sequences.

Repeating Segment

A consistent sequence of atoms or groups within a polymer that repeats along its chain.

Nylon 6,6

A type of polyamide made by polymerizing hexamethylene diamine and adipic acid, known for its strong, elastic, and resistant properties, used in textiles and engineering plastics.

Monomers

Simple molecules that can undergo polymerization to form more complex molecules called polymers, serving as the building blocks for a variety of macromolecules.