Question: An evacuated cylindrical vessel of45cm diameter closed with a circular lid. Estimate the effort(force)required for lifting the lid, if the atmospheric pressure is95cm of the

An evacuated cylindrical vessel of 45 cm diameter closed with a circular lid. Estimate the effort (force) required for lifting the lid, if the atmospheric pressure is 95 cm of the mercury column

(Take the density of mercury is 13.6 times 103 kg/m3. Take g = 9.81 m/s2.)

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