Oil with a surface tension of 0.01 N/m is trapped in a bed of material with permeability of 1x10^-10 m^2 and a length of 150 m. We want to push the oil out of the bed by pumping in an extraction fluid (neglect the properties of this fluid) at 12000 kPa. When the oil stops coming out, what fraction of oil will be left in the bed?

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.