How much wrapping paper is used in the U.S. every year?
How many steps are climbed by Americans every day? How much potential energy does this represent? How much power?
Look for the answers online at tpt.aapt.org under “Browse,” at the very end of the current issue.
Question suggestions are always welcome!
For more Fermi questions and answers, see Guesstimation 2.0: Solving Today’s Problems on the Back of a Napkin, by Lawrence Weinstein (Princeton University Press, 2012).