Question

The inner radius of a metallic tube of density 10 g per cm ^3 is 7 cm. the thickness of the tube is 0.35cm. find the weight of the tube if it is of length 30 cm

Please solve!

Answer 1

Answer:

Step-by-step explanation:

volume of total cylinder = 3.14*1.54*1.54*30

                                     = 223.404

volume of the hollow space of the cylinder = 3.14*1.25*1.25*30

                                                                   =147.187

subtracting both of them = 223.404 - 147.187

                                      = 76.217

Density of the cylinder = 76.217*7

                                   = 533.519 gm/cm cube

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Answer 2

Answer:

533.519 gm/cm cube