Physics 197 Lecture 32: Lecture 32

How many 11 inch balloon lift 20 pounds?

Vectors A, B, C have magnitudes 6, 11, and 20. When thesevectors are added, what is the least possible magnitude of theirresultant?

Problem 4.
A) Textbook problem 20-11 B) Textbook problem 20-12
C) What is a magnetic domain?
D) How can an unmagnetized chunk of iron be magnetized?
E) Why does dropping a magnetic strip of metal decrease themagnetism of the strip of metal?
F) Why does increasing the temperature of a magnet decrease itsmagnetism?