Atank contains 0.568 mol of molecular nitrogen (n2). determine the mass (in grams) of nitrogen that must be removed from the tank in order to lower the pressure from 44.7 to 22.8 atm. assume that the volume and temperature of the nitrogen in the tank do not change.

Explanation:

we know that for ideal gag we have

pV =nRT

Since volume, gas constant R and T are constant, so we have

n = 0.289 mole

hence mass removed

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards