The diameter of a lead pipe is measured to be 2.40 cm and you are asked to convert to units of inches. Which of the following conversion factors can you use to solve this problem?
To convert the diameter of the lead pipe from centimeters to inches, we need to find a conversion factor that relates centimeters to inches. We can use the fact that there are 2.54 centimeters in 1 inch. None of the given conversion factors directly provide this information, so the correct answer is "None of these".