Physics

A heavy piece of hanging sculpture is suspended by a 90 cm long, 5.0 g steel wire. When the
wind blows hard, the wire hums at its fundamental frequency of 80 Hz. What is the mass of the
sculpture?

---

Velocity=(0.9)(80)=72m/s

T=V^2*u
=(72)^2*(0.005kg/0.9m)
=28.8 N

T=W
28.8=(mass sculpture + mass wire)*g

..im not sure where I am going wrong...or if any of this is correct..

  1. 👍 0
  2. 👎 0
  3. 👁 1,326
  1. velocityalongstring= sqrt(tension/mass/length)

    velocityalongstring=sqrt(Mass*g*.9/.005)
    but the string is one half wavelength long (fixed at both ends), so
    from the wave equation
    frequency*wavelenth= velocity
    frequency*2*.90=sqrt(Mass*9.8*.9/.005)
    put in 80 hz, solve for mass of the weight.

    1. 👍 0
    2. 👎 0
    👨‍🏫
    bobpursley
  2. oops, change my .005kg to .05kg

    1. 👍 0
    2. 👎 0
    👨‍🏫
    bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Art

    how are art and conservation science connected in this sculpture? A. The artists was repurposing materials to create art B. The artists only used brand-new materials to create art. C. the artists created a piece that could not be

  2. Calculus

    a piece of wire 12 ft. long is cut into two pieces. one piece is made into a circle and the other piece is made into a square. Let the piece of length x be formed into a circle. allow x to equal 0 or 12, so all the wire is used

  3. Physics warming a nail

    2.) Pounding a nail into wood makes the nail warmer. Consider a 5-g steel nail 6 cm long and a hammer that exerts an average force of 500 N on the nail when it is being driven into a piece of wood. The nail becomes hotter. Show

  4. Math

    A 14 inch board is to be cut into 3 pieces so that the second piece is twice as long as the first piece and the third piece is 4 times as long as the first piece. If x represents the length of the first piece find the lengths of

  1. Geometry

    Nisha is looking out the window of her apartment building at a sculpture in a park across the street. The top of Nisha's window is 80 feet from the ground. The angle of depression from the top of Nisha's window to the bottom of

  2. algebra

    A 28​-inch board is to be cut into three pieces so that the second piece is twicetwice as long as the first piece and the third piece is 44 times as long as the first piece. If x represents the length of the first​ piece, find

  3. physics

    A large chandelier weighing 1500lbs. is suspended from the roof of a theater lobby. The steel pipe from which it hangs is 20ft long. Determine the size of the pipe necessary to carry chandelier safely. Use A36 steel. What is the

  4. Math

    A 36 inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece find the length

  1. physics

    A light rigid bar is suspended horizontally from two vertical wires, one of steel and one of brass. Each wire is 2.00m long. The diameter of the steel wire is 0.60mm and the length of the bar AB is 0.20m. When a mass of 10.0kg is

  2. GEOMETRY

    Alicia is 5ft tall. she casts a shadow that measures 6 1/2 feet long at the same time that a sculpture in the park casts a shadow 12 ft long. which of the following is the approximate height of the sculpture? a) 2.0 miles b) 6.6

  3. algebra

    a 38 inch piece of steels is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is three inches more than four times the length of the first piece. find the lengths of pieces.

  4. geometry

    how many inches long is the radius of the largest circle that can fit inside a rectangle 18 inches long and 12 inches wide? An 84-cm wire is cut into three pieces. the second piece is 4 cm longer than the first piece and the third

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