A hammer strikes a nail with five units of energy, in the form of mechanical energy. The nail is driven into the wood. Its motion represents four units of mechanical energy. An image is provided. A. One unit
B. Four units
C. Five units
D. Nine units

Read the scenario below and answer the question that follows. bailey is plagued with sleep problems at least a couple of times a week. she often feels tired at work and doesn't do her best work because she is "just so tired." according to the lesson, it can be said that adults have some of the same problems with sleep that bailey does. a. few b. many c. no d. all