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Lelechka [254]
3 years ago
5

SomeOne please help me will give BRAILIEST!!!!!!!!

Physics
2 answers:
ale4655 [162]3 years ago
6 0
That is false they are slightly tilted in an up ngle
just olya [345]3 years ago
5 0
False.
The wings on a plane are shaped a certain way so that when wind is being pushed against it it will glide.
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A steel wire in a piano has a length of 0.680 m and a mass of 4.600 ✕ 10⁻³ kg. To what tension must this wire be stretched so th
garik1379 [7]

Answer:

728 N

Explanation:

L = length of the wire = 0.680 m

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Fundamental frequency in wire is given as

f = \frac{1}{2L} \sqrt{\frac{TL}{m} } \\261.6 = \frac{1}{2(0.680)} \sqrt{\frac{T(0.80)}{0.0046} }\\(2) (0.680) (261.6) = \sqrt{\frac{T(0.80)}{0.0046} }\\355.8 = \sqrt{\frac{T(0.80)}{0.0046} }\\355.8^{2} = \frac{T(0.80)}{0.0046}\\T = \frac{(355.8^{2}(0.0046))}{0.80} \\T = 728 N

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