7 An elevator is designed to lift a load of 1000 kg through 6 floors of a building averaging 3 5 m per floor in 6 sec Power of

Question

7 An elevator is designed to lift a load of 1000 kg through 6 floors of a building averaging 3 5 m per floor in 6 sec Power of the elevator neglecting other losses with be 1 3 43 x 10 watt 2 4 33 x 104 watt 3 2 21 x 104 watt 4 5 65 x 104 watt 8 A convex lens and a concave lens are kept in contact with common principal axes If f and f

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