The linear velocity of a point on the rim of a wheel rotating about an axis passing through its centre is 62.8 cm/s. The radius of the wheel is 2.5 cm. Find the frequency of its rotation.
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(i) Arid soils are the soils of desert or semi-desert regions and colours varies from red to brown. (ii) The soil has sandy texture and salinity. As precipitation is very low the temperature is high and evaporation is faster making it lack in moisture and humus
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