Physics

In Larry Niven’s science fiction novel
Ringworld, a ring of material of radius
1.54 × 1011 m rotates about a star with a ro-
tational speed of 1.38 × 106 m/s. The inhab-
itants of this ring world experience a normal
contact force ~n. Acting alone, this normal
force would produce an inward acceleration of
9.28 m/s2. Additionally, the star at the cen-
ter of the ring exerts a gravitational force on
the ring and its inhabitants.

The difference between the total acceleration
and the acceleration provided by the normal
force is due to the gravitational attraction of
the central star.
Find the approximate mass of the star.

  1. 👍 0
  2. 👎 0
  3. 👁 289
  1. **** u guys

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Alicia's cheapskate boyfriend gave her a ring he claims is 24 carat gold. Alicia is skeptical. After chem class the next day she measures the mass of the ring, finds the volume of the ring by water displacement, and then

  2. algebra

    A survey of 70 Customers was taken at a bookstore regarding the types of books purchased. The survey found that 42 customers purchased mysteries, 34 purchased science fiction, 24 purchased romance novels, 18 purchased mysteries

  3. Math

    A survey of 59 customers was taken at a bookstore regarding the types of books purchased. The survey found 36 customers purchased mysteries, 28 purchased science fiction, 21 purchased romance novels, 15 purchased mysteries and

  4. Math

    A survey of 63 customers was taken at a bookstore regarding the types of books purchased. The survey found that 39 customers purchased mysteries​, 29 purchased science fiction​, 23 purchased romance novels​, 16 purchased

  1. ENGLISH

    In what year was this article published? In what year was the film Minority Report set? What gaming console does the article mention? Why does the article mention this gaming console? What is the “Star Trek effect,” and how

  2. math

    If Larry worked 411/2 hours this week and spent 1/3 of his time hauling material, how much actual time did Larry spend hauling

  3. college Mathematics

    I have been trying to figure this out for day's please help if you can. A survey of 59 customers was taken at a book store regarding the type of novels purchased. The survey found 34 customers purchased mysteries, 27 purchased

  4. math

    the ratio to the number of mystery books to the number of science fiction books is 4:3 the ratio of the number of science fiction books to the number of biographies is 4:5 if there are 48 science fiction books, find the total

  1. Math Advanced Functions

    Of all the grade 12 students in a school, 27% take Science Fiction, 34% take Data Management and 9% take both courses. Given that a student is taking Science Fiction, what is the probability that they are also taking Data

  2. reading and literature

    which is hamlet by Shakespeare historical fiction, mystery, myth, science fiction, realistic fiction, allegory, parody, satire, or graphic novel.im thinking graphic novels

  3. English

    Which statement is always true of fiction? A. Essays and biographies are examples of fiction. B. Fiction tells about real people and events. C. Examples of fiction include short stories and novels. D. Conflict is not an element of

  4. English

    We were brought up together; there was not quite a year difference in our ages. I need not say that we were strangers to any species of disunion or dispute. Harmony was the soul of our companionship, and the diversity and contrast

You can view more similar questions or ask a new question.