Avalve in the cylinder shown in the figure below has a cross-sectional area of 7.8 cm2. the atmospheric pressure is 100 kpa.

given that a force of at least 400 n is required to open the valve (which moves inward to open), determine the gauge pressure inside the cylinder.

give your answer to 4 significant figures. (=512.8kpa i got this correct).

(b) the absolute pressure inside the cylinder is now 1200 kpa. if a gauge were used to measure the gauge pressure inside the system in mm of mercury, what would it be? assume rhomercury = 13595 kg/m3 and g = 9.80665 m/s2.

give your answer to 4 significant figures. (need on this part).

(c) if a force were required to pull the valve outward, what could you say about the pressure (gauge) inside of the system?

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap