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a pipe is 300cm long it has an internal diameter of 10cm and has a tkickness of 1cm

a)find its outer surface area b)its mass if the pipe weghs 3g perc...

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a pipe is 300cm long it has an internal diameter of 10cm and has a tkickness of 1cm

a)find its outer surface area
b)its mass if the pipe weghs 3g percm cubes

Answer

We need to determine the circumference of the pipe and multiply by its length, in order to calculate the surface
a) 2\pi*r*l, where r->radius, l-length radius is half the diameter We take into account the thickness of the pipe diameter or add 2 * 1cm 2 pi r l=2 pi frac 10+2 2 300=3600 pi
b) We look forward now to the field pipe diameter = 10 (same): 2 pi r l=2 pi frac 10 2 300=3000 pi Now subtract from each other both results and multiplied by the weight given 3 frac g cm 3: 3600 pi-3000 pi=600 pi 600 picm 3 3 frac g cm 3 =1800 pig

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Virtual Teaching Assistant: John B.
Question Level: Basic
Karma: Free
Upload Date: 5/31/2017

This 32 words question was answered by John B. on StudySoup on 5/31/2017. The question contains content related to Math Since its upload, it has received 143 views.

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