Steel Ball End
please help me with this math question 2 .. u will get the points!?
The frequency of a vibrating string is inversely proportional to its diameter. A violin string with diameter of 0.50 mm produces a tone of 440 Hz. What is the frequency of the tone produced by a similar chain, which diameter is 0.55 mm? A 360 Hz 375 Hz 390 Hz b cd 400 Hz with a steel handle has a 500 kg ball at one end and a record of 300 kg at the other end. The lever is balanced. The steel ball is 1 m closer to the fulcrum is the record. How far from the fulcrum is the record? A 2.5 m 2 mbcd 1.5 m 1 m
1) F = k / D is given as F = 440 when D = 0.5 Alternate, and you find k = 220. Now, take k = 220 and plug it into your formula to determine the frequency given any diameter. F = 220 / D Plug D = 0.55 and find F = F. Therefore 220/.55 2 F = 400 Hz) You know the forces are balanced and you know that the steel ball sits a m closer than the record. Therefore, balancing the forces, you have: 500 (x – 1) = 300x 500x – 300x 200x 500 = = 500 x = 2.5 m Therefore, 2.5 m is the distance is the record of the fulcrum. The answer is A.
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