8 19 20 Pen 2 of 2 R" information A piano "string" is steel wire wilh radius 0500 mm and lengt 1,30 m, tt is 829 N of tension, The density of steel is 7860 kg,'m3 (see table 9.1), The modulus of steel is ZOO 10 tl Pa (see table 10, 0, What is the of Tansverse waves on the string? Req i A is with 050) lmgth 130 It is 829 N of of is 1860 kg'm3 (see table 9.1). The modulus of steel is 200 1011 Pa taE*e What is the f'mdamental frequency for transverse waves? Requ A piano string' is steel wire with radius 0500 mm and lengm 1,30 m, tt is under 829 N of tension. The of steel is 7860 91) of stl is 200 10M Pa Gble 10.1)_ Consider the wire to be a thin Solid Steel rod. What iS the Speed Of waves Sound) in the Longitudinal waves the wire do Contribute to the Characteristic Sound Of the piano) A sow-ld wave has an intensity level of 129.0 da in air. The density of air at 200'C is p Speed Of Sound air at 20.0'C iS v 342 (See Table 12.1). What iS the pressure arrWitude Of the wave? Required information 1.20 kg"m3 Table The A sound wave has an intensity level of 129.0 dB in air. The density of air at is p speed of sound n air at is v; 343 m's (see Table 12.1), - 1.20 kgjm3 (see Table 91), The What maximum force does this wave exert on an eardrum Of area 0.580 to-4 m2?