A metal pipe is 77cm long the inner diameter

Asked by admin @ 17/08/2021 in Math viewed by 365 People

A metal pipe is 77 cm. long. The inner diameter of a cross section is 4 cm., the outer diameter being 4.4 cm. (see figure) Find its

(i) inner curved surface area
(ii) outer curved surface area
(iii) Total surface area

Answered by admin @ 17/08/2021

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A long metal bar of 30 cm length

Asked by admin @ 29/08/2021 in Physics viewed by 291 persons

A long metal bar of 30 cm length is aligned along a north south line and moves eastward at a speed of 10 ms1. A uniform magnetic field of 4.0 …

A semicircular thin sheet of metal of diameter 28cm

Asked by admin @ 23/08/2021 in Math viewed by 297 persons

A semicircular thin sheet of metal of diameter 28cm is bent to make an open conical cup find the capacity of the cup . plz answer .

The diameter of roller 1.5 m long is 84cm

Asked by admin @ 20/08/2021 in Math viewed by 291 persons

The diameter of roller 1.5m long is 84cm. If it takes 100 revolutions to level a playground ,find the cost of leveling this ground at the rate of 50 paise …

A metal pipe has a bore of 5 cm

Asked by admin @ 20/08/2021 in Math viewed by 308 persons

A metal pipe has a bore(inner diameter) of 5 cm.The pipe is 5 mm thick all round.Find the weight,in kilogram,of 2 metres of the pipe if 1 cm³ of the …

The volume of metallic cylindrical pipe is 748 cm3

Asked by admin @ 17/08/2021 in Math viewed by 338 persons

the volume of a cylindrical pipe is 748 cm3 its length is 14 cm and its external radius is 9 cm find its thickness

A wire is 1m long 0.2 mm in diameter

Asked by admin @ 16/08/2021 in Physics viewed by 337 persons

A wire is 1.0 m long 0.2 mm in diameter and has a resistance of 10 Ω. Calculate the resistivity of its material.

The diameter of a metallic sphere is 6 cm

Asked by admin @ 13/08/2021 in Math viewed by 301 persons

The diameter of a metallic sphere is 6 CM the sphere is melted and drawn into long wire of uniform circular cross section if the length of the wire is …

The diameter of a roller 120cm long is 84cm

Asked by admin @ 11/08/2021 in Math viewed by 301 persons

the diameter of a roller 120 cm long is 84 cm. if it takes 500 complete revolutions to level a a playground determine the cost of levelling it at the …

A semi circular sheet of metal of diameter 28

Asked by admin @ 11/08/2021 in Math viewed by 263 persons

a semicircular sheet of paper of diameter 28 cm is bent into an open conical cup. find the depth and the capacity of the cup

The inner diameter of a circular well is 3.5

Asked by admin @ 11/08/2021 in Math viewed by 279 persons

The inner diameter of a circular well is 3.5m. It is 10m deep. Find i)its inner curved surface area ii)The cost of plastering this curved surface at the rate of …

The inner diameter of a glass is 7 cm

Asked by admin @ 20/08/2021 in Math viewed by 289 persons

31. The inner diameter of a glass is 7 cm and it has a raised portion in the bottom in theshape of a hemisphere, as shown in thefigure. …

A well of inner diameter 14 m is dug

Asked by admin @ 20/08/2021 in Math viewed by 268 persons

A well of inner diameter 14 m is dug to a depth of 12 km. Earth taken out of it has been evenly spread all around it to a width …

A glass capillary tube of inner diameter 0.28 mm

Asked by admin @ 16/08/2021 in Physics viewed by 302 persons

A glass capillary tube of inner diameter 0.28 mm is lowered vertically into water in a vessel. Thepressure to be applied on the water in the capillarytube so …