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Q. The A string of a violin is 32cm long between fixed points with a fundamental frequency of 440Hz and a mass per unit length of 6.5×10-4 kg/m. What is the wave speed in string?

Q. A tapered, pressurized tank for a rocket contains 0.250m3 of kerosene, which has a mass of 205 kg. The pressure at the top of the kerosene is 2.1 x 105 Pa. The pressure force of 18.0 kN on the tank's bottom, which has an area of 0.080 m2. Find out the depth of the kerosene.

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Category:- Physics
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