Alexa's Hair Grows with an Average Speed of 3

question 44

Multiple Choice

Alexa's hair grows with an average speed of 3.5 × 10^-9 m/s. How long does it take her hair to grow 0.30 m? Note: 1 yr = 3.156 × 10⁷ s.

• A)1.9 yr
• B)1.3 yr
• C)0.37 yr
• D)5.4 yr
• E)2.7 yr

---

Definitions:

Innovation

The process of creating new products, services, or methods that improve efficiency or provide new benefits.

Distribution Method

Strategies and channels a company uses to deliver its goods or services to consumers.

Inverted-U Theory

A hypothesis suggesting that income inequality will rise and then fall over the course of economic development, forming an inverted U-shape curve.

R&D Expenditures

Funds allocated by companies, institutions, or governments towards research and development activities to innovate or improve products, services, or processes.