Final answer:
Purchasing a new computer for a business is an example of investing in physical capital, as it is a tangible asset that increases the company's productive capacity.
Step-by-step explanation:
The scenario which exemplifies an investment in physical capital is purchasing a new computer for a business. This involves spending money on tangible assets that can improve the productive capacity of a business. Investing in stocks, mutual funds, or starting a savings account are examples of financial capital investments, designed to offer a return to the investor over time rather than boost the immediate productive capabilities of the business.