Many musical instruments use “boxes” as part of the instrument. Some examples are acoustic guitars and pianos. From your experience in this lab on building your own musical instrument, write a brief essay on the purpose of these “boxes”. Include a brief description of a xylophone and what it uses for the purpose of the box.

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

How can you increase the strength of an electromagnet?