Math

A volmeter's pointer is 6 centimeters in length. Find an angle through which it rotates when it moves 2.5 centimeters on the scale.

  1. 👍
  2. 👎
  3. 👁
  1. The circumference is 2pi(6) or 12pi

    let the angle be ߺ and set up a ratio

    360/(12pi)= ß/2.5
    ß = 2.5(360)/(12pi)
    = 23.9º

    or if α is the angle in radians

    2pi/(12pi) = α/2.5
    α = .417 radians

    1. 👍
    2. 👎
  2. Thank You

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra

    This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one

  2. physics

    A wheel starts from rest and rotates with constant angular acceleration and reaches an angular speed of 12.0 rad/s in 3.00 s. Find the angle (in radians) throuh which it rotates in this time.

  3. mathematics

    The table shows one​ student's results from spinning the pointer 30 times. Find the experimental probability that the pointer lands in a section with a number 5. 1618741558_image.png

  4. trigonometry

    Find the length of the arc that subtends an angle of measure 70 degrees on a circle of diameter 15 centimeters.

  1. Math

    The volume of a rectangular solid is 180 cubic centimeters. The length is 10 centimeters and the width is 4 centimeters. Using the formulas V=lwh, what is the solid in centimeters?

  2. geometry

    The perimeter of parallelogram CDEF is 54 centimeters. Find the length of segment FC if segment DE is 5 centimeters longer than segment EF. (Hint: Sketch and label a diagram first.) a)14 b)44 c)16 d)11

  3. Chemistry?

    You move a bar magnet two inches through a coil of wire. What do you observe in a galvanometer hooked up to the coil? The pointer moves one direction and then stops in that position. The pointer moves one direction and then goes

  4. Math

    Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the area of the parallelogram. A parallelogram has a lower side measuring 24 centimeters and a right side measuring 9

  1. math

    I have 14 questions and I was wondering if someone could check my answers. This is a do or die situation. If I don't get an A, I may not get to graduate. I really appreciate you taking your time to double check theses for me.

  2. math

    the length of a rectangle is 23 centimeters less than five times its width. Its area is 42 square centimeters. Find the dimensions of the rectangle

  3. math

    Which equation can be used to find the volume of this solid? A rectangular prism with a length of 5 centimeters, width of 4 centimeters, and height of 2 centimeters. V = 2 times 4 times 5 V = 2 + 5 + 4 V = 2 times 5 V = 4 times 5

  4. Physics

    The hypotenuse of a right triangle is 29.0 centimeters. The length of one of its legs is 20.0 centimeters. What is the length of the other leg?

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