Question

help me with the Number 3 please

3 Palabora Mine, Phalaborwa, is a South African copper mine. A total of 4.1 million tonnes of copper have been extracted from this mine. In the image shown, Dillon Marsh, a South African artist, has combined photography and computer imaging to visualize the total copper output of the mine. The copper sphere in the image is placed on the ground from which it was extracted, and represents a scale model of the copper removed from the mine. Find the radius of the copper sphere, given that I m of copper weighs about 8930 kg.

Answer 1

a been total of 4.1 extracted Given ; Volume of million tonnes of copper have from this mine. m3 & 8930kg (of copper). sphere - 4 th T = 3.149 We have , 1 m - 8930 kg Then Iton = 4 million 1000kg > tonnes 4100,000 KG Then L 4,100,000 kg 3 x 4,100,000 & 8930 459, 126.54 m² de Volume = Tra = 459, 126.54 m² =) g3 459,126.54 x35 109,663.98 4T - 8 = { Take I = 3.14 7 3/109, 663.98 47.86 m Hence a radius of sphere (copper) = 47.86 ml

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