final_review_saturday - Final Exam Review Questions...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Artist rendering of the Stanford torus. NASA. Final Exam Review Questions December 8, 2007, 12-2 PM Calvin Berggren 1. A bug on a turntable, 9 cm from the center, is walking out from the center at 6 cm/s. The mass of the bug is 30 g. The mass of the turntable is 0.5 kg, and it is cylindrical with radius 15 cm. The turntable is turning at .5 rev/s. What is the force of static friction on the bug? If the turntable has a coefficient of static friction equal to 0.3, will the bug slip? 2. If creators of a space station were attempting to simulate gravity by designing the station in the shape of a circle and having it rotate about its axis, they would like to find out how fast the station would have to be rotating to have simulated gravity equal to that of Earth. Let us model the station as a disk with a hole, weighing 1 million kg, with inner radius 10 m and outer radius 15 m. Say that the “floor” of the space station is at a radius of 13 m.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern