A 1.0 kg mass is attached to a string and moves in a horizontal circle with a radius of 1.0 m at a rate of 4.0 rev/s. a.) Find the centripetal acceleration of the mass.
b.) Calculate the magnitude of the centripetal force acting on the mass.
c.) What is the direction of the centripetal force?

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?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency