a) A cylindrical metallic tube of density 0.5g/cm3 has mass of 847g.
calculate the height of the tube if the radius of its base is 7cm.
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Answer:
cylinder dencity=0.5g/cm3
mass=847g
radius=7cm
volume of cylinders =^r2h
22/7×7×7×h=154h
density =mass/volume
0.5=847/154h
154h×0.5=847
77h=847
h=847/77
h=11cm
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