a heavy piston is supported by a gas trapped in a cylinder. the cross-sectional area of the piston is 4.0 x 10^(-4) m^2. the pressure of the gas inside the cylinder is 1.5 x 10 ^5 pa and atmospheric pressure is 1.0 x 10^5 pa. find the mass of the piston taking g=10m/s^2

Net pressure on the piston= Pressure from gas(upward)- Pressure of air from tom (downwards)

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