SMANSA Science

jh asked:


A 1.70 -diameter vat of liquid is 2.90 deep. The pressure at the bottom of the vat is 1.30 . What is the mass of the liquid in the vat?

Styrofoam has a density of . What is the maximum mass that can hang without sinking from a 80.0 -diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.

A gymnasium is 11.0 high. By what percent is the air pressure at the floor greater than the air pressure at the ceiling?

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Daniel asked:


The troposphere extends to an altitude of 11km where the pressure is 22.6 kPa. in the next layer, the stratosphere, the temperature remains constant at -56.5 celcius. determine the pressure and density in this layer at an altitude of 15 km. assuming g = 9.77 m/s^2

please help me!

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