Madison did an experiment to learn about electromagnets and permanent magnets. She used a nail wrapped with a copper wire attached to a battery. She also used a long bar magnet. To test the strength of the two magnets she tried to pick up steel paper clips to form a chain.

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

What is tge speed of sound in dry air at 0°c

If the human population continues to grow, what is a likely effect on land use? a. more land will be used for cities. b. more land will be used for forests. c. more land will be used for grasslands. d. more land will be used for wetlands.