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Iqra stands between two high rise buildings A and B,such that she is at 33m distance from building A. when she blows the whistle ,she hears the first echo after 0.2 second and acho after 0.8 second.Calculate(a) the speed of sound and (b)distance of building B from her?

Iqra stands between two high rise buildings A and B,such that she is at 33m distance from building A. when she blows the whistle ,she hears the first echo after 0.2 second and acho after 0.8 second.Calculate(a) the speed of sound and (b)distance of building B from her?

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Grade:12th pass

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