By how many newtons does the weight of a 100-kg person change when he goes from sea level to an altitude of 5000 m? (The mean radius of the Earth is 6.38 times 10^6 m.) a. 3.6 N. b. 5.2 N. c. 1.6 N. d. 0.6 N. e. 2.6 N.

The correct answer is C. public companies. Sarbanes-Oxley, also known as SOX, is a U.S. federal law that was passed in 2002 in response to major accounting scandals such as Enron and WorldCom. The law aims to protect investors by improving the accuracy and reliability of corporate disclosures. Sarbanes-Oxley applies specifically to public companies, which are those that have issued securities that are traded on a public exchange such as the New York Stock Exchange or NASDAQ. Private companies, on the other hand, are not subject to Sarbanes-Oxley requirements. While there are some exemptions and variations based on company size and other factors, in general, all publicly traded companies must comply with Sarbanes-Oxley provisions, such as having an independent audit committee and establishing internal controls to ensure accurate financial reporting.