Math, asked by prince2848, 1 year ago

The thickness of a metallic tube is 1cm and the inner diameter of the tube is 12cm. find the weight of 1m long tube, if the density of the metal is 7.8g/cm cube?

Answers

Answered by srirammukka2004
3

Answer:

Area of a circle = �r�  

Inner diameter = 12 cm  

Inner radius = 6 cm  

Outer radius = 6+1 = 7 cm  

Cross sectional area of an annulus (ring)  

= �(r2�-r1�)  

=(7�-6�)�  

=13� cm�  

Volume for a 1 metre tube:  

V=13�&100cm cm�  

=1300 cm�  

Mass ("weight")  

=volume * density.

Step-by-step explanation:


Answered by sanskafatqv
7
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