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if a particle performs SHM then its giv...

if a particle performs SHM then its given by `y=30sin(60pit-4/pix)`. what is the value of Amplitude frequency and wavelength?

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The earth is not completely spherical. It is more flat at the poles than that at the equator. Therefore, the distance of the equator from the centre of the earth is more than that of GM the poles. According to `g=(GM)/R^(2)`, g varies inversely as the square of the radius and the weight of the body is directly proportional to g. Al equator the value of Ris more, hence the value of g al equatom is less than that at the poles. As a result, the weight of body decreases al equator.
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